{"id":30276,"date":"2023-09-09T20:15:41","date_gmt":"2023-07-11T18:25:54","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/php%e7%bc%96%e7%a8%8b\/"},"modified":"2025-08-12T18:25:23","modified_gmt":"2025-08-12T10:25:23","slug":"php%e7%bc%96%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/php%e7%bc%96%e7%a8%8b\/","title":{"rendered":"PHP\u7f16\u7a0b"},"content":{"rendered":"

\u9996\u5148PHP\u662f\u4e00\u79cd\u811a\u672c\u8bed\u8a00\uff0c\u9002\u5408\u7528\u4e8eWeb\u5f00\u53d1\uff0c\u56e0\u4e3a\u53ef\u4ee5\u5d4c\u5165HTML\u4e2d\u3002<\/p>\n

2.
\n\u73af\u5883\u6211\u4f7f\u7528\u4e86 VMware Workstation 15 Player \u4e2d\u7684\u865a\u62df\u673a\u3002
\n\u865a\u62df\u673a\u7684\u7248\u672c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
[root@server ~]#<\/span> cat<\/span> \/etc\/redhat-release\r\nCentOS Linux release 8.3.2011\r\n<\/span><\/code><\/pre>\n
[root@server ~]#<\/span> uname<\/span> -r<\/span>\r\n4.18.0-240.el8.x86_64\r\n<\/span><\/code><\/pre>\n
3 \u5b89\u88c5\u6b65\u9aa4<\/p>\n
[root@server ~]#<\/span> dnf install <\/span>php\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> php -v<\/span>\r\nPHP 7.2.24 (cli) (built: Oct 22 2019 08:28:36) ( NTS )\r\nCopyright (c) 1997-2018 The PHP Group\r\nZend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies\r\n<\/span><\/code><\/pre>\n
4 \u4f60\u597d\u4e16\u754c\u5728\u4ee5 \u53e6\u5916\uff0c\u53d8\u91cf\u540d\u6709\u4ee5\u4e0b\u6761\u4ef6\uff1a
\n– \u9996\u4e2a\u5b57\u7b26\u53ea\u80fd\u662f\u5b57\u6bcd\u6216\u4e0b\u5212\u7ebf\u3002
\n– \u7b2c\u4e8c\u4e2a\u5b57\u7b26\u53ca\u4ee5\u540e\u7684\u5b57\u7b26\u53ea\u80fd\u662f\u5b57\u6bcd\u3001\u6570\u5b57\u6216\u4e0b\u5212\u7ebf\u3002<\/p>\n
6.1 \u4e2d\u6587\u7684\u4f7f\u7528\u65b9\u6cd5<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>$<\/span>name<\/span>=<\/span>\"hana_shin\"<\/span>;<\/span>\r\necho \"My name is $<\/span>name\".\"<\/span>\\n<\/span>\";\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\nMy name is hana_shin\r\n<\/span><\/code><\/pre>\n
\u5355\u5f15\u53f7\u548c\u53cc\u5f15\u53f7\u7684\u533a\u522b\u662f\u4ec0\u4e48\uff1f<\/p>\n
\n
\u5f15\u7528\u7b26\u306e\u7a2e\u985e\u610f\u5473\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8\u30c0\u30d6\u30eb\u30af\u30a9\u30fc\u30c8\u3067\u56f2\u307e\u308c\u305f\u5909\u6570\u306f\u5024\u306b\u7f6e\u304d\u63db\u308f\u308b\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8\u30b7\u30f3\u30b0\u30eb\u30af\u30a9\u30fc\u30c8\u3067\u56f2\u307e\u308c\u305f\u5909\u6570\u306f\u5024\u306b\u7f6e\u304d\u63db\u308f\u3089\u306a\u3044<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>$<\/span>name<\/span>=<\/span>\"hana_shin\"<\/span>;<\/span>\r\necho \"My name is $<\/span>name\".\"<\/span>\\n<\/span>\";\r\n<\/span>echo 'My name is $<\/span>name'.\"<\/span>\\n<\/span>\";\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\nMy name is hana_shin\r\n<\/span>My name is $<\/span>name\r\n<\/code><\/pre>\n
6.3 \u4f7f\u7528\u6570\u5b57\u7684\u65b9\u6cd5<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>$<\/span>val<\/span>=<\/span>12345;<\/span>\r\necho \"$<\/span>val\\n<\/span>\";\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n12345\r\n<\/span><\/code><\/pre>\n
7\u6587\u5b57\u5217\u7684\u64cd\u4f5c\u65b9\u6cd5<\/p>\n
7.1 \u6587\u672c\u64cd\u4f5c\u51fd\u6570\u7684\u7528\u6cd5<\/p>\n
\n
\u95a2\u6570\u610f\u5473strlen\u6587\u5b57\u5217\u306e\u9577\u3055\u3092\u8abf\u3079\u308bsubstr\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u53d6\u308a\u51fa\u3059str_replace\u6587\u5b57\u5217\u306e\u4e00\u90e8\u3092\u5225\u306e\u6587\u5b57\u5217\u306b\u7f6e\u304d\u63db\u3048\u308b<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>$<\/span>str<\/span>=<\/span>\"12345\"<\/span>;<\/span>\r\nprintf(\"strlen=%d\\n\", strlen($<\/span>str))<\/span>;<\/span>\r\nprintf(\"substr=%s\\n\", substr($<\/span>str,2,3))<\/span>;<\/span>\r\nprintf(\"str_replace=%s\\n\", str_replace('234','bcd',$<\/span>str))<\/span>;<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\nstrlen=5\r\nsubstr=345\r\nstr_replace=1bcd5\r\n<\/span><\/code><\/pre>\n
7.2 \u4f7f\u7528\u6587\u5b57\u4e32\u5408\u904b\u7b97\u5b50\u7684\u65b9\u6cd5\uff08\u53e5\u865f\uff09<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>print \"123\".\"45\".\"\\n\";<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n12345\r\n<\/span><\/code><\/pre>\n
7.3 \u89e3\u6790\u67e5\u8be2\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\uff08parse_str\uff09\u67e5\u8be2\u5b57\u7b26\u4e32\u662f\u5c06\u540d\u79f0\u548c\u503c\u901a\u8fc7\u7b49\u53f7\u8fde\u63a5\uff0c\u901a\u8fc7&\u7b26\u53f7\u7ec4\u5408\u6210\u7684\u5b57\u7b26\u4e32\u3002
\n\u4f8b\u5982\uff0c\u53ef\u4ee5\u662f\u4ee5\u4e0b\u5f62\u5f0f\u7684\u5b57\u7b26\u4e32\uff1a
\nfirst_name=hana&last_name=shin&age=10
\n\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528parse_str\u51fd\u6570\uff0c\u4ece\u67e5\u8be2\u5b57\u7b26\u4e32\u4e2d\u63d0\u53d6\u51fa\u540d\u79f0\u548c\u503c\u7684\u5bf9\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>str =<\/span> \"first_name=hana&last_name=shin&age=10\"<\/span>;<\/span>\r\n  parse_str($<\/span>str, $output<\/span>)<\/span>;<\/span>\r\n  foreach($<\/span>output as $key<\/span> =><\/span> $value<\/span>)<\/span> {<\/span>\r\n    print \"$<\/span>key<\/span>=<\/span>$value<\/span>\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\nfirst_name=hana\r\nlast_name=shin\r\nage=10\r\n<\/span><\/code><\/pre>\n
\u6761\u4ef6\u5206\u5c90\u7684\u4f7f\u7528\u65b9\u6cd5\u67098\u4e2a\u3002<\/p>\n
8.1 \u57fa\u7840\u4f7f\u7528\u65b9\u6cd5<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>var<\/span>=<\/span>$argv<\/span>[<\/span>1];<\/span>\r\n  if($<\/span>var ==<\/span> 1)<\/span> {<\/span>\r\n    print \"1\".\"\\n\";<\/span>\r\n  }\r\n<\/span>  else if($<\/span>var ==<\/span> 2)<\/span> {<\/span>\r\n    print \"2\".\"\\n\";<\/span>\r\n  }\r\n  else {\r\n<\/span>    print \"other\".\"\\n\";<\/span>\r\n  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php 1\r\n1\r\n<\/span><\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php 2\r\n2\r\n<\/span><\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php 3\r\nother\r\n<\/span><\/code><\/pre>\n
8.2 \u4f7f\u7528\u903b\u8f91\u8fd0\u7b97\u7b26\u7684\u65b9\u6cd5\u30fb$a && $b : \u5f53\u4e14\u4ec5\u5f53$a\u548c$b\u90fd\u4e3a\u771f\u65f6\u624d\u4e3a\u771f
\n\u30fb$a || $b : \u5f53$a\u6216$b\u4e2d\u7684\u4efb\u4e00\u4e2a\u4e3a\u771f\u65f6\u624d\u4e3a\u771f<\/p>\n
\u6211\u4f1a\u521b\u5efa\u4e00\u4e2a\u811a\u672c\u6765\u663e\u793a\u547d\u4ee4\u884c\u53c2\u6570\u7684\u503c\u5982\u679c\u5927\u4e8e\u7b49\u4e8e10\u4e14\u5c0f\u4e8e20\uff0c\u5219\u663e\u793a”IN”\uff0c\u5426\u5219\u663e\u793a”OUT”\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>var<\/span>=<\/span>$argv<\/span>[<\/span>1];<\/span>\r\n  if(($<\/span>var >=<\/span>10)<\/span> &&<\/span> (<\/span>$var<\/span> <20))<\/span> {<\/span>\r\n    print \"IN\".\"\\n\";<\/span>\r\n  }\r\n  else {\r\n<\/span>    print \"OUT\".\"\\n\";<\/span>\r\n  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php 10\r\nIN\r\n<\/span><\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php 20\r\nOUT\r\n<\/span><\/code><\/pre>\n
9\u91cd\u590d\u7684\u7528\u6cd5<\/p>\n
9\u67081\u65e5\uff0c\u5f53…<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>var<\/span>=<\/span>0;<\/span>\r\n  while($<\/span>var++ < 5){<\/span>\r\n    print \"$<\/span>var\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n1\r\n2\r\n3\r\n4\r\n5\r\n<\/span><\/code><\/pre>\n
9.2 for\u5faa\u73af<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  for($<\/span>var<\/span>=<\/span>0;<\/span> $var<\/span><5;<\/span> $var<\/span>++)<\/span> {<\/span>\r\n   print \"$<\/span>var\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n0\r\n1\r\n2\r\n3\r\n4\r\n<\/span><\/code><\/pre>\n
10\u4e2a\u6570\u7ec4\u7684\u4f7f\u7528\u65b9\u6cd5<\/p>\n
10.1 \u6570\u7ec4\u7684\u521b\u5efa\u65b9\u6cd5<\/p>\n
\u4f7f\u752810.1.1\u6570\u7ec4\u7684\u65b9\u6cd5<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>var =<\/span> array(<\/span>\"aa\"<\/span>,\"bb\"<\/span>,\"cc\"<\/span>)<\/span>;<\/span>\r\n  print \"$<\/span>var[0]\".\"<\/span>\\n<\/span>\";\r\n<\/span>  print \"$<\/span>var[1]\"<\/span>.\"<\/span>\\n<\/span>\"<\/span>;<\/span>\r\n  print \"$<\/span>var[2]\".\"<\/span>\\n<\/span>\";\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\naa\r\nbb\r\ncc\r\n<\/span><\/code><\/pre>\n
\u7528\u6307\u5b9a\u7684\u952e\u6765\u8d4b\u503c\u7684\u65b9\u6cd5\u662f10.1.2.
\n\u6211\u5011\u4f86\u5728\u9375\u70ba0\u30011\u548c2\u7684\u5143\u7d20\u4e2d\u5206\u5225\u8ce6\u4e88\u503c10\u300120\u548c30\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>var[0] =<\/span> 10;<\/span>\r\n  $<\/span>var[1] =<\/span> 20;<\/span>\r\n  $<\/span>var[2] =<\/span> 30;<\/span>\r\n  foreach ($<\/span>var as $tmp<\/span>)<\/span> {<\/span>\r\n    print \"$<\/span>tmp\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n10\r\n20\r\n30\r\n<\/span><\/code><\/pre>\n
10.1.3 \u521b\u5efa\u5173\u8054\u6570\u7ec4\u7684\u65b9\u6cd5\u5728\u4ee5\u4e0b\u60c5\u51b5\u4e0b\uff0csuzuki\u3001sato\u548cito\u4e0d\u662f\u6570\u5b57\uff0c\u800c\u662f\u5b57\u7b26\u4e32\u3002\u6211\u4eec\u5c06\u4f7f\u7528foreach\u6765\u663e\u793a\u5173\u8054\u6570\u7ec4\u7684\u503c\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>person<\/span>=<\/span>array(<\/span>\"suzuki\"<\/span>=><\/span>30, \"sato\"<\/span>=><\/span>40, \"ito\"<\/span>=><\/span>50)<\/span>;<\/span>\r\n  foreach($<\/span>person as $key<\/span>=><\/span>$value<\/span>)<\/span> {<\/span>\r\n    print \"$<\/span>key is $value<\/span> years old\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\nsuzuki is 30 years old\r\nsato is 40 years old\r\nito is 50 years old\r\n<\/span><\/code><\/pre>\n
10.2 \u6dfb\u52a0\u548c\u5220\u9664\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5<\/p>\n
10.2.1 \u5982\u4f55\u5728\u6570\u7ec4\u7684\u5f00\u5934\u6dfb\u52a0\u5143\u7d20\u7684\u65b9\u6cd5\uff08array_unshift\uff09<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  print \"--- before adding item ---\".\"\\n\";<\/span>\r\n  $<\/span>item =<\/span> array(<\/span>\"11\"<\/span>, \"22\"<\/span>, \"33\"<\/span>)<\/span>;<\/span>\r\n  foreach($<\/span>item as $key<\/span> =><\/span> $value<\/span>)<\/span> {<\/span>\r\n    print \"[$<\/span>key]=<\/span>$value<\/span>\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n\r\n<\/span>  print \"--- after adding item ---\".\"\\n\";<\/span>\r\n  $<\/span>size =<\/span> array_unshift(<\/span>$item<\/span>, \"88\"<\/span>, \"99\"<\/span>)<\/span>;<\/span>\r\n  foreach($<\/span>item as $key<\/span> =><\/span> $value<\/span>)<\/span> {<\/span>\r\n    print \"[$<\/span>key]=<\/span>$value<\/span>\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n--- before adding item ---\r\n[0]=11\r\n[1]=22\r\n[2]=33\r\n--- after adding item ---\r\n[0]=88\r\n[1]=99\r\n[2]=11\r\n[3]=22\r\n[4]=33\r\n<\/span><\/code><\/pre>\n
10.2.2 \u6dfb\u52a0\u5143\u7d20\u5230\u6570\u7ec4\u672b\u5c3e\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 array_push.<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  print \"--- before adding item ---\".\"\\n\";<\/span>\r\n  $<\/span>item =<\/span> array(<\/span>\"11\"<\/span>, \"22\"<\/span>, \"33\"<\/span>)<\/span>;<\/span>\r\n  foreach($<\/span>item as $key<\/span> =><\/span> $value<\/span>)<\/span> {<\/span>\r\n    print \"[$<\/span>key]=<\/span>$value<\/span>\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n\r\n<\/span>  print \"--- after adding item ---\".\"\\n\";<\/span>\r\n  $<\/span>size =<\/span> array_push(<\/span>$item<\/span>, \"88\"<\/span>, \"99\"<\/span>)<\/span>;<\/span>\r\n  foreach($<\/span>item as $key<\/span> =><\/span> $value<\/span>)<\/span> {<\/span>\r\n    print \"[$<\/span>key]=<\/span>$value<\/span>\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n--- before adding item ---\r\n[0]=11\r\n[1]=22\r\n[2]=33\r\n--- after adding item ---\r\n[0]=11\r\n[1]=22\r\n[2]=33\r\n[3]=88\r\n[4]=99\r\n<\/span><\/code><\/pre>\n
\u4ece\u6570\u7ec4\u7684\u5f00\u5934\u5220\u9664\u5143\u7d20\u7684\u65b9\u6cd5(array_shift)\u662f10.2.3\u7684\u5185\u5bb9\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  print \"--- before adding item ---\".\"\\n\";<\/span>\r\n  $<\/span>item =<\/span> array(<\/span>\"11\"<\/span>, \"22\"<\/span>, \"33\"<\/span>)<\/span>;<\/span>\r\n  foreach($<\/span>item as $key<\/span> =><\/span> $value<\/span>)<\/span> {<\/span>\r\n    print \"[$<\/span>key]=<\/span>$value<\/span>\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n\r\n<\/span>  print \"--- after adding item ---\".\"\\n\";<\/span>\r\n  $<\/span>size =<\/span> array_shift(<\/span>$item<\/span>)<\/span>;<\/span>\r\n  foreach($<\/span>item as $key<\/span> =><\/span> $value<\/span>)<\/span> {<\/span>\r\n    print \"[$<\/span>key]=<\/span>$value<\/span>\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n--- before adding item ---\r\n[0]=11\r\n[1]=22\r\n[2]=33\r\n--- after adding item ---\r\n[0]=22\r\n[1]=33\r\n<\/span><\/code><\/pre>\n
10.2.4 \u5220\u9664\u6570\u7ec4\u672b\u5c3e\u7684\u5143\u7d20\u7684\u65b9\u6cd5\uff08array_pop\uff09<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  print \"--- before adding item ---\".\"\\n\";<\/span>\r\n  $<\/span>item =<\/span> array(<\/span>\"11\"<\/span>, \"22\"<\/span>, \"33\"<\/span>)<\/span>;<\/span>\r\n  foreach($<\/span>item as $key<\/span> =><\/span> $value<\/span>)<\/span> {<\/span>\r\n    print \"[$<\/span>key]=<\/span>$value<\/span>\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n\r\n<\/span>  print \"--- after adding item ---\".\"\\n\";<\/span>\r\n  $<\/span>size =<\/span> array_pop(<\/span>$item<\/span>)<\/span>;<\/span>\r\n  foreach($<\/span>item as $key<\/span> =><\/span> $value<\/span>)<\/span> {<\/span>\r\n    print \"[$<\/span>key]=<\/span>$value<\/span>\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n--- before adding item ---\r\n[0]=11\r\n[1]=22\r\n[2]=33\r\n--- after adding item ---\r\n[0]=11\r\n[1]=22\r\n<\/span><\/code><\/pre>\n
\u4f7f\u7528var_dump\u51fd\u6570\u663e\u793a\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u5728\u8c03\u8bd5\u65f6\u4f7f\u7528\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>var =<\/span> array(<\/span>\"aa\"<\/span>,\"bb\"<\/span>,\"cc\"<\/span>)<\/span>;<\/span>\r\n  var_dump($<\/span>var)<\/span>;<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\narray(3) {\r\n<\/span>  [0]=><\/span>\r\n  string(2) \"aa\"\r\n<\/span>  [1]=><\/span>\r\n  string(2) \"bb\"\r\n<\/span>  [2]=><\/span>\r\n  string(2) \"cc\"\r\n}\r\n<\/span><\/code><\/pre>\n
10.6 \u7528\u4e8e\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u503c\u603b\u548c\u7684\u65b9\u6cd5\uff08array_sum\uff09<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>value_array =<\/span> array(<\/span>100, 200, 300, 400)<\/span>;<\/span>\r\n  $<\/span>sum<\/span> =<\/span> array_sum(<\/span>$value_array<\/span>)<\/span>;<\/span>\r\n  print \"sum is $<\/span>sum<\/span>\".\"<\/span>\\n<\/span>\"\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\nsum is 1000\r\n<\/span><\/code><\/pre>\n
10.7 \u5bfb\u627e\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5(array_search)
\narray_search\u51fd\u6570\u7528\u4e8e\u5728\u6570\u7ec4\u4e2d\u641c\u7d22\u5177\u6709\u6307\u5b9a\u503c\u7684\u5143\u7d20\u3002
\n\u5176\u683c\u5f0f\u5982\u4e0b\uff1a
\narray_search(\u641c\u7d22\u503c, \u76ee\u6807\u6570\u7ec4, \u7c7b\u578b\u68c0\u67e5\u9009\u9879)
\n\u5982\u679c\u627e\u5230\u5177\u6709\u6307\u5b9a\u503c\u7684\u5143\u7d20\uff0c\u5219\u8fd4\u56de\u8be5\u5143\u7d20\u7684\u952e\u3002
\n\u5982\u679c\u7701\u7565\u7c7b\u578b\u68c0\u67e5\u9009\u9879\uff0c\u5219\u9ed8\u8ba4\u4e3aFALSE\u3002
\nFALSE\u5c06\u5224\u65ad\u6570\u503c\u768410\u548c\u5b57\u7b26\u4e32\u7684”10″\u76f8\u540c\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>val =<\/span> $argv<\/span>[<\/span>1];<\/span>\r\n  $<\/span>customer =<\/span> array(<\/span>\"suzuki\"<\/span>=><\/span>30, \"sato\"<\/span>=><\/span>40, \"kato\"<\/span>=><\/span>50)<\/span>;<\/span>\r\n  $<\/span>key =<\/span> array_search(<\/span>$val<\/span>, $customer<\/span>)<\/span>;<\/span>\r\n  if($<\/span>key ==<\/span> TRUE)<\/span> {<\/span>\r\n    print \"$<\/span>key is $val<\/span> years old\".\"<\/span>\\n<\/span>\";\r\n<\/span>  }\r\n  else {\r\n<\/span>    print \"Not Fond\".\"\\n\";<\/span>\r\n  }\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
\u5bfb\u627e\u5e74\u9f84\u4e3a20\u5c81\u7684\u4eba\uff0c\u4f46\u53d1\u73b0\u6ca1\u6709\u4efb\u4f55\u4eba\u3002<\/p>\n
[root@server ~]#<\/span> .\/tp.php 20\r\nNot Fond\r\n<\/span><\/code><\/pre>\n
\u5bfb\u627e30\u5c81\u7684\u4eba\u3002\u53d1\u73b0Suzuki\u5148\u751f\u7b26\u5408\u6761\u4ef6\u3002<\/p>\n
[root@server ~]#<\/span> .\/tp.php 30\r\nsuzuki is 30 years old\r\n<\/span><\/code><\/pre>\n
\u5bfb\u627e\u5e74\u9f84\u4e3a50\u5c81\u7684\u4eba\u3002\u53ef\u77e5\u52a0\u85e4\u5148\u751f\u7b26\u5408\u6761\u4ef6\u3002<\/p>\n
[root@server ~]#<\/span> .\/tp.php 50\r\nkato is 50 years old\r\n<\/span><\/code><\/pre>\n
11\u4e2a\u51fd\u6570\u7684\u4f7f\u7528\u65b9\u6cd5<\/p>\n
11.1 \u51fd\u6570\u53c2\u6570\u7684\u4f7f\u7528\u65b9\u6cd5<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  function add($<\/span>arg1, $arg2<\/span>)<\/span> {<\/span>\r\n    $<\/span>sum<\/span> =<\/span> $arg1<\/span> + $arg2<\/span>;<\/span>\r\n    return $<\/span>sum<\/span>;<\/span>\r\n  }\r\n<\/span>  print add(10,20);<\/span>\r\n  print \"\\n\";<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n30\r\n<\/span><\/code><\/pre>\n
11.2 \u4f7f\u7528\u9ed8\u8ba4\u53c2\u6570\u503c\u7684\u65b9\u6cd5\u53ef\u4ee5\u6307\u5b9a\u9ed8\u8ba4\u503c\u5728\u51fd\u6570\u7684\u53c2\u6570\u4e2d\uff0c\u4ee5\u4fbf\u5728\u8c03\u7528\u65f6\u6ca1\u6709\u63d0\u4f9b\u503c\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u3002
\n\u6240\u6709\u5177\u6709\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\u5e94\u653e\u7f6e\u5728\u6ca1\u6709\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\u4e4b\u540e\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  function add($<\/span>arg1, $arg2<\/span>=<\/span>20, $arg3<\/span>=<\/span>30)<\/span> {<\/span>\r\n    $<\/span>sum<\/span> =<\/span> $arg1<\/span> + $arg2<\/span> + $arg3<\/span>;<\/span>\r\n    return $<\/span>sum<\/span>;<\/span>\r\n  }\r\n<\/span>  print add(10);<\/span>\r\n  print \"\\n\";<\/span>\r\n  print add(100,200,300);<\/span>\r\n  print \"\\n\";<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n60\r\n600\r\n<\/span><\/code><\/pre>\n
\u663e\u793a12\u5c0f\u65f6\u5236\u7684\u65b9\u6cd5<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  print \"date      :\".date('c').\"\\n\";<\/span>\r\n  print \"strftime  :\".strftime('%c').\"\\n\";<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\ndate      :2021-01-09T10:59:06+00:00\r\nstrftime  :Sat Jan  9 10:59:06 2021\r\n<\/span><\/code><\/pre>\n
\u5982\u4f55\u8bfb\u519913\u4efd\u6587\u4ef6<\/p>\n
\u7528\u4e8e\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u7684\u65b9\u6cd5<\/p>\n
[root@server ~]#<\/span> echo <\/span>1234567890 ><\/span> test.txt\r\n[root@server ~]#<\/span> cat <\/span>test.txt\r\n1234567890\r\n<\/span><\/code><\/pre>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>str =<\/span> file_get_contents(<\/span>'.\/test.txt'<\/span>)<\/span>;<\/span>\r\n  print \"$<\/span>str\".\"<\/span>\\n<\/span>\";\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n1234567890\r\n<\/span><\/code><\/pre>\n
\u8bfb\u53d6\u6587\u4ef6\u7684\u4e00\u90e8\u5206\u7684\u65b9\u6cd5\u662f 13.2\u6211\u5c06\u5c1d\u8bd5\u4ecetest.txt\u6587\u4ef6\u7684\u7b2c6\u4e2a\u5b57\u7b26\u8bfb\u53d63\u4e2a\u5b57\u7b26\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  $<\/span>str =<\/span> file_get_contents(<\/span>'.\/test.txt'<\/span>, FALSE, NULL, 5, 3)<\/span>;<\/span>\r\n  print \"$<\/span>str\".\"<\/span>\\n<\/span>\";\r\n<\/span>?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\n678\r\n<\/span><\/code><\/pre>\n
\u5305\u542b(include)\u6587\u4ef6\u7684\u65b9\u6cd5<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n<\/span>  print \"main file\".\"\\n\";<\/span>\r\n  include('hoge.php');<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> cat <\/span>hoge.php\r\n<?php\r\n<\/span>  print \"hoge file\".\"\\n\";<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
[root@server ~]#<\/span> .\/tp.php\r\nmain file\r\nhoge file\r\n<\/span><\/code><\/pre>\n
\u4e0e15 \u6570\u636e\u5e93\u8fde\u63a5\u65b9\u5f0f\u6211\u5011\u4f86\u5617\u8a66\u9023\u63a5\u5230MariaDB\u3002\u6709\u95dcMariaDB\u7684\u5b89\u88dd\u65b9\u6cd5\uff0c\u8acb\u53c3\u8003MariaDB\u7684\u4f7f\u7528\u624b\u518a\u3002
\n\u57fa\u65bc\u5b89\u5168\u6027\u8003\u616e\uff0c\u6211\u4e0d\u5efa\u8b70\u4f7f\u7528root\u5e33\u865f\u9023\u63a5\u5230\u8cc7\u6599\u5eab\uff0c\u4e0d\u904e\u51fa\u65bc\u65b9\u4fbf\u8d77\u898b\uff0c\u6211\u5011\u73fe\u5728\u4f7f\u7528root\u5e33\u865f\u9023\u63a5\u3002<\/p>\n
15.1 \u4e8b\u524d\u6e96\u5099\u5728\u6211\u7684\u73af\u5883\u4e2d\uff0c\u5f53\u6211\u8fd0\u884c\u811a\u672c\u65f6\uff0c\u4f1a\u51fa\u73b0\u4ee5\u4e0b\u9519\u8bef\u3002<\/p>\n
PHP Fatal error:  Uncaught Error: Class 'PDO' not found in \/root\/tp.php:3\r\nPHP Fatal error:  Uncaught PDOException: could not find driver in \/root\/tp.php:3\r\n<\/span><\/code><\/pre>\n
\u6211\u5df2\u7ecf\u5b89\u88c5\u4e86\u4ee5\u4e0b\u7684\u8f6f\u4ef6\u5305\u3002<\/p>\n
[root@server ~]#<\/span> dnf -y<\/span> install <\/span>php-pdo\r\n[root@server ~]#<\/span> dnf -y<\/span> install <\/span>php-mysqlnd\r\n<\/code><\/pre>\n
15.2 \u521b\u5efa\u6570\u636e\u5e93\u7531\u4e8ePHP\u60f3\u8981\u8fde\u63a5\u5230\u540d\u4e3atestdb\u7684\u6570\u636e\u5e93\uff0c\u56e0\u6b64\u8bf7\u5728MariaDB\u76d1\u89c6\u5668\u4e2d\u9884\u5148\u521b\u5efatestdb\u6570\u636e\u5e93\u3002<\/p>\n
MariaDB [(none)]><\/span> create database testdb;<\/span>\r\nQuery OK, 1 row affected (0.000 sec)\r\n<\/span><\/code><\/pre>\n
\u786e\u8ba4\u6570\u636e\u5e93\u3002
\n\u53ef\u4ee5\u770b\u5230\u5df2\u7ecf\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3atestdb\u7684\u6570\u636e\u5e93\u3002<\/p>\n
MariaDB [(none)]><\/span> show databases;<\/span>\r\n+--------------------+\r\n| Database           |\r\n+--------------------+\r\n| information_schema |\r\n| mysql              |\r\n| performance_schema |\r\n| test               |\r\n| testdb             |\r\n+--------------------+\r\n5 rows in set (0.001 sec)\r\n<\/span><\/code><\/pre>\n
15.3 \u8fde\u63a5\u5230\u6570\u636e\u5e93
\n\u8fde\u63a5\u6570\u636e\u5e93\u5e76\u521b\u5efa\u540d\u4e3acustomer\u7684\u8868\uff0c\u7136\u540e\u5c06\u8bb0\u5f55\u63d2\u5165\u5230customer\u8868\u4e2d\u3002\u8bb0\u5f55\u7531\u59d3\u540d\u548c\u5e74\u9f84\u7ec4\u6210\u3002<\/p>\n
[root@server ~]#<\/span> cat <\/span>tp.php\r\n#<\/span>!<\/span>\/usr\/bin\/php\r\n<?php\r\n  try {\r\n<\/span>    $<\/span>pdo =<\/span> new PDO(<\/span>'mysql:host=127.0.0.1;dbname=testdb'<\/span>, 'root'<\/span>, 'admin'<\/span>)<\/span>;<\/span>\r\n    $<\/span>sql =<\/span> \"create table customer (name varchar(32), age tinyint unsigned)\"<\/span>;<\/span>\r\n    $<\/span>stmt =<\/span> $pdo<\/span>->query(<\/span>$sql<\/span>)<\/span>;<\/span>\r\n    $<\/span>sql =<\/span> \"insert into customer values('suzuki', 40)\"<\/span>;<\/span>\r\n    $<\/span>stmt =<\/span> $pdo<\/span>->prepare(<\/span>$sql<\/span>)<\/span>;<\/span>\r\n    $<\/span>res =<\/span> $stmt<\/span>->execute(<\/span>null)<\/span>;<\/span>\r\n  }catch(Exception $<\/span>e)<\/span> {<\/span>\r\n    die(\"Connection Failed: \".$<\/span>e->getMessage())<\/span>;<\/span>\r\n  }\r\n<\/span>  $<\/span>pdo =<\/span> null;<\/span>\r\n?><\/span>\r\n<\/code><\/pre>\n
\u786e\u8ba4testdb\u6570\u636e\u5e93\u4e2d\u5df2\u6ce8\u518c\u7684\u8868\u683c\u3002
\n\u53ef\u4ee5\u53d1\u73b0\u6ca1\u6709\u4efb\u4f55\u8868\u683c\u88ab\u6ce8\u518c\u3002<\/p>\n
MariaDB [testdb]><\/span> show tables;<\/span>\r\nEmpty set (0.001 sec)\r\n<\/span><\/code><\/pre>\n
\u6267\u884c\u811a\u672c\u3002<\/p>\n
[root@server ~]#<\/span> .\/tp.php\r\n<\/code><\/pre>\n
\u786e\u8ba4\u8868\u683c\u3002
\n\u53ef\u4ee5\u770b\u5230\u540d\u4e3acustomer\u7684\u8868\u683c\u5df2\u7ecf\u88ab\u521b\u5efa\u3002<\/p>\n
MariaDB [testdb]><\/span> show tables;<\/span>\r\n+------------------+\r\n| Tables_in_testdb |\r\n+------------------+\r\n| customer         |\r\n+------------------+\r\n1 row in set (0.000 sec)\r\n<\/span><\/code><\/pre>\n
\u786e\u8ba4\u5728\u5ba2\u6237\u8868\u4e2d\u5df2\u7ecf\u767b\u8bb0\u4e86\u4e00\u6761\u8bb0\u5f55\u3002
\n\u53ef\u4ee5\u770b\u5230\u540d\u5b57\u662fSuzuki\uff0c\u5e74\u9f84\u4e3a40\u5c81\u7684\u8bb0\u5f55\u5df2\u7ecf\u88ab\u767b\u8bb0\u3002<\/p>\n
MariaDB [testdb]><\/span> select<\/span> *<\/span> from customer;<\/span>\r\n+--------+------+\r\n| name   | age  |\r\n+--------+------+\r\n| suzuki |   40 |\r\n+--------+------+\r\n1 row in set (0.000 sec)\r\n<\/span><\/code><\/pre>\n
Z\u7684\u8cc7\u8a0a\u53c3\u8003PHP \u6570\u636e\u5bf9\u8c61
\nTohoho \u7684 PHP \u5165\u95e8
\nPHP5 \u6280\u672f\u8ba4\u8bc1 [\u521d\u7ea7] \u8003\u8bd5\u95ee\u9898\u96c6 \u653b\u7565 [PJ0-100] \u7248\u672c<\/p>\n","protected":false},"excerpt":{"rendered":"
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