{"id":30660,"date":"2023-01-28T05:42:07","date_gmt":"2023-06-14T05:07:36","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/php-%e6%ad%a3%e5%bc%8f%e5%bc%80%e5%90%af%e5%85%a5%e9%97%a8%e7%af%87-%e3%8a%a4\/"},"modified":"2025-08-12T20:14:09","modified_gmt":"2025-08-12T12:14:09","slug":"php-%e6%ad%a3%e5%bc%8f%e5%bc%80%e5%90%af%e5%85%a5%e9%97%a8%e7%af%87-%e3%8a%a4","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/php-%e6%ad%a3%e5%bc%8f%e5%bc%80%e5%90%af%e5%85%a5%e9%97%a8%e7%af%87-%e3%8a%a4\/","title":{"rendered":"PHP \u6b63\u5f0f\u5f00\u542f\u5165\u95e8\u7bc7 \u32a4"},"content":{"rendered":"<p>\u56e0\u4e3a\u6211\u8981\u5728\u73b0\u573a\u5199\u771f\u6b63\u7684PHP\u4ee3\u7801\uff0c\u6240\u4ee5\u6211\u51b3\u5b9a\u7c97\u7565\u5730\u9605\u8bfb\u4e00\u4e0b\u4e66\u7c4d\uff0c\u5e76\u5c06\u6211\u5173\u6ce8\u7684\u90e8\u5206\u6574\u7406\u51fa\u6765\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d088937434c4406be0791\/1-0.jpg\" alt=\"No Image\" \/><\/p>\n<h1>\u7b2c\u4e00\u7ae0 PHP\u521d\u4f53\u9a8c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">WEB\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">WEB\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068WEB\u30b5\u30fc\u30d0\u30fc\u306e\u95a2\u4fc2\u6027<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">PHP\u306e\u74b0\u5883\u69cb\u7bc9<\/ul>\n<p>\u4ee5\u4e0b\u5217\u51fa\u4e86\u4e00\u4e9b\u5185\u5bb9\u7b49\u7b49\u3002\u8be6\u7ec6\u5185\u5bb9\u7565\u8fc7\u4e0d\u63d0\u3002<\/p>\n<h1>\u7b2c\u4e8c\u7ae0 PHP\u7684\u57fa\u672c\u8bed\u6cd5<\/p>\n<h4>2-1-2 \u53d8\u91cf\u547d\u540d\u89c4\u5219<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5909\u6570\u540d\u306f\u30b9\u30cd\u30fc\u30af\u30b1\u30fc\u30b9(\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\uff09\u3082\u3057\u304f\u306f\u30ad\u30e3\u30e1\u30eb\u30b1\u30fc\u30b9<\/ul>\n<\/li>\n<\/ul>\n<p>\u4f8b\uff09 \\$total_price, \\$totalPrice<br \/>\n\u8fd1\u5e74\u4e00\u822c\u7684\u306a\u306e\u306f\u5f8c\u8005\u306e\u30ad\u30e3\u30e1\u30eb\u30b1\u30fc\u30b9<\/p>\n<h4>\u8f93\u51fa\u53d8\u91cf\u7684\u503c &#8211; \u4f7f\u7528echo\u547d\u4ee4\u6216print\u547d\u4ee4\u3002<\/p>\n<ul class=\"post-ul\">\u5909\u6570\u306e\u5024\u306e\u51fa\u529b\u306f\u4ee5\u4e0b\u306e\u901a\u308a<\/ul>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span> <span class=\"k\">echo<\/span>  <span class=\"nv\">$\u5909\u6570\u540d<\/span><span class=\"p\">;<\/span> <span class=\"cp\">?&gt;<\/span>\r\n<span class=\"cp\">&lt;?php<\/span> <span class=\"k\">print<\/span> <span class=\"nv\">$\u5909\u6570\u540d<\/span><span class=\"p\">;<\/span> <span class=\"cp\">?&gt;<\/span>\r\n<span class=\"cp\">&lt;?=<\/span> <span class=\"k\">echo<\/span> <span class=\"nv\">$\u5909\u6570\u540d<\/span> <span class=\"cp\">?&gt;<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u9023\u7d50\u3055\u305b\u3066\u51fa\u529b\u3059\u308b\u6642<\/ul>\n<\/li>\n<\/ul>\n<p>print\u547d\u4ee4\u306e\u5834\u5408\uff1a\u5909\u6570\u3068\u5024\u3092\u30c9\u30c3\u30c8\uff08.\uff09\u3067\u3064\u306a\u3050<br \/>\necho\u547d\u4ee4\u3068<!--?= $\u5909\u6570\u540d ?-->\u306e\u5834\u5408\uff1a\u30c9\u30c3\u30c8\u3092\u4f7f\u3048\u308b\u307b\u304b\u3001\u30ab\u30f3\u30de\uff08,\uff09\u3067\u5217\u6319\u3059\u308b\u3053\u3068\u3082\u53ef<br \/>\n\u30c9\u30c3\u30c8\u306e\u307b\u3046\u304c\u5024\u306e\u9023\u7d50\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308b\u305f\u3081\u3001\u30ab\u30f3\u30de\u3088\u308a\u82e5\u5e72\u30b9\u30d4\u30fc\u30c9\u304c\u843d\u3061\u308b<\/p>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span>\r\n  <span class=\"nv\">$total<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">100<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"s1\">'\u7d50\u679c\uff1a'<\/span> <span class=\"p\">,<\/span> <span class=\"nv\">$total<\/span> <span class=\"p\">,<\/span> <span class=\"s1\">'\u5186'<\/span><span class=\"p\">;<\/span>  <span class=\"c1\">\/\/ \u7d50\u679c\uff1a100\u5186<\/span>\r\n  <span class=\"k\">print<\/span> <span class=\"s1\">'\u7d50\u679c\uff1a'<\/span> <span class=\"mf\">.<\/span> <span class=\"nv\">$total<\/span> <span class=\"mf\">.<\/span> <span class=\"s1\">'\u5186'<\/span><span class=\"p\">;<\/span>  <span class=\"c1\">\/\/ \u7d50\u679c\uff1a100\u5186<\/span>\r\n<span class=\"cp\">?&gt;<\/span>\r\n<\/code><\/pre>\n<h4>2-2-5\u3000\u5904\u7406\u5b57\u7b26\u4e32\u6570\u636e\uff084\uff09- \u4f7f\u7528PHP_EOL\u5207\u6362\u6362\u884c\u7b26<\/p>\n<ul class=\"post-ul\">PHP\u306e\u5b9f\u884c\u74b0\u5883\u306b\u3088\u3063\u3066\u3044CRLF\u3068LF\u3092\u5207\u308a\u66ff\u3048\u305f\u3044\u6642\u306fPHP_EOL\u3092\u4f7f\u7528\u3059\u308b<\/ul>\n<div>\n<div class=\"post-table\">OS\u6539\u884c\u30b3\u30fc\u30c9PHP_EOL\u304c\u8868\u3059\u30b7\u30fc\u30b1\u30f3\u30b9WindowsCRLF\\r\\nMac\uff08OS X\u4ee5\u964d\uff09LF\\nUNIX\/LinuxLF\\n<\/p>\n<ul class=\"post-ul\">\u30af\u30a9\u30fc\u30c8\u306e\u5916\u306b\u66f8\u304d\u3001\u30c9\u30c3\u30c8\u8a18\u53f7\uff08.\uff09\u3067\u9023\u7d50\u3057\u3066\u66f8\u304f<\/ul>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span>\r\n  <span class=\"nv\">$mailBody<\/span>  <span class=\"o\">=<\/span> <span class=\"s2\">\"\u304a\u554f\u3044\u5408\u308f\u305b\u3092\u53d7\u3051\u4ed8\u3051\u307e\u3057\u305f\u3002\"<\/span> <span class=\"mf\">.<\/span> <span class=\"kc\">PHP_EOL<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$mailBody<\/span> <span class=\"mf\">.<\/span><span class=\"o\">=<\/span> <span class=\"s2\">\"\u304a\u554f\u3044\u5408\u308f\u305b\u5185\u5bb9\uff1a\"<\/span> <span class=\"mf\">.<\/span> <span class=\"kc\">PHP_EOL<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$mailBody<\/span> <span class=\"mf\">.<\/span><span class=\"o\">=<\/span> <span class=\"s2\">\"<\/span><span class=\"se\">\\t<\/span><span class=\"s2\">\u5546\u54c1\u756a\u53f7\u300cabc123\u300d\u306b\u3064\u3044\u3066\u3001\u30b5\u30a4\u30ba\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\"<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"nv\">$mailBody<\/span>\r\n\r\n<span class=\"cm\">\/* \u5b9f\u884c\u7d50\u679c\r\n\u304a\u554f\u3044\u5408\u308f\u305b\u3092\u53d7\u3051\u4ed8\u3051\u307e\u3057\u305f\u3002\r\n\u304a\u554f\u3044\u5408\u308f\u305b\u5185\u5bb9\uff1a\r\n    \u5546\u54c1\u756a\u53f7\u300cabc123\u300d\u306b\u3064\u3044\u3066\u3001\u30b5\u30a4\u30ba\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\r\n*\/<\/span>\r\n<span class=\"cp\">?&gt;<\/span>\r\n<\/code><\/pre>\n<h4>2-2-10 \u5bf9\u4e8ePHP\u6765\u8bf4\uff0c\u6570\u7ec4\u548c\u5173\u8054\u6570\u7ec4\u662f\u76f8\u540c\u7684\u3002<\/p>\n<ul class=\"post-ul\">\u30ad\u30fc\u3092\u4e0e\u3048\u305a\u306b\u914d\u5217\u3092\u5b9a\u7fa9\u3057\u305f\u6642\u306f\u3001\u81ea\u52d5\u7684\u306b0\u304b\u3089\u59cb\u307e\u308b\u9023\u756a\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u30ad\u30fc\u3068\u306a\u308b<\/ul>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span>\r\n  <span class=\"nv\">$participants<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[];<\/span>\r\n  <span class=\"nv\">$participants<\/span><span class=\"p\">[<\/span><span class=\"mi\">0<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'\u5c0f\u6797'<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$participants<\/span><span class=\"p\">[<\/span><span class=\"mi\">1<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'\u7530\u4e2d'<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$participants<\/span><span class=\"p\">[<\/span><span class=\"mi\">2<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'\u9234\u6728'<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$participants<\/span><span class=\"p\">[<\/span><span class=\"s1\">'event'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'\u5927\u4e95\u753a\u958b\u50ac \u30ef\u30a4\u30f3\u4f1a'<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$participants<\/span><span class=\"p\">[<\/span><span class=\"s1\">'event-date'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'2021.2.8'<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nb\">var_dump<\/span><span class=\"p\">(<\/span><span class=\"nv\">$participants<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"cm\">\/* \u5b9f\u884c\u7d50\u679c\r\narray(5) {\r\n  [0]=&gt; string(6) \"\u5c0f\u6797\"\r\n  [1]=&gt; string(6) \"\u7530\u4e2d\"\r\n  [2]=&gt; string(6) \"\u9234\u6728\"\r\n  [\"event\"]=&gt; string(28) \"\u5927\u4e95\u753a\u958b\u50ac \u30ef\u30a4\u30f3\u4f1a\"\r\n  [\"event-date\"]=&gt; string(8) \"2021.2.8\"\r\n}\r\n*\/<\/span>\r\n<span class=\"cp\">?&gt;<\/span>\r\n<\/code><\/pre>\n<h4>\u5c06\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u5206\u914d\u7ed9\u6807\u91cf\u53d8\u91cf &#8211; \u5217\u8868\uff08\uff09<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u914d\u5217\u306e\u5404\u8981\u7d20\u3092\u610f\u5473\u306e\u5206\u304b\u308b\u3088\u3046\u306b\u30b9\u30ab\u30e9\u30fc\u5909\u6570\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">CSV\u30d5\u30a1\u30a4\u30eb\u3092\u53d6\u308a\u6271\u3046\u6642\u306a\u3069\u306b\u6709\u52b9<\/ul>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span>\r\n  <span class=\"nv\">$userData<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span><span class=\"mi\">12345<\/span><span class=\"p\">,<\/span> <span class=\"s1\">'Yosuke Murakami'<\/span><span class=\"p\">,<\/span> <span class=\"s1\">'Tokyo'<\/span><span class=\"p\">,<\/span> <span class=\"mi\">32<\/span><span class=\"p\">];<\/span>\r\n  <span class=\"k\">list<\/span><span class=\"p\">(<\/span><span class=\"nv\">$id<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$name<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$prefecture<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$age<\/span><span class=\"p\">)<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$userData<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nb\">var_dump<\/span><span class=\"p\">(<\/span><span class=\"nv\">$id<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nb\">var_dump<\/span><span class=\"p\">(<\/span><span class=\"nv\">$name<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nb\">var_dump<\/span><span class=\"p\">(<\/span><span class=\"nv\">$prefecture<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"nb\">var_dump<\/span><span class=\"p\">(<\/span><span class=\"nv\">$age<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"cm\">\/* \u5b9f\u884c\u7d50\u679c\r\nint(12345)\r\nstring(15) \"Yosuke Murakami\"\r\nstring(5) \"Tokyo\"\r\nint(32)\r\n*\/<\/span>\r\n<span class=\"cp\">?&gt;<\/span>\r\n<\/code><\/pre>\n<h4>\u8fdb\u884c\u8ba1\u7b97\uff0c\u5982\u56db\u5219\u8fd0\u7b97-\u8d4b\u503c\u8fd0\u7b97\u7b26\u3001\u52a0\u6cd5\u8fd0\u7b97\u7b26\/\u51cf\u6cd5\u8fd0\u7b97\u7b26<\/p>\n<ul class=\"post-ul\">\u52a0\u7b97\u5b50\u3068\u6e1b\u7b97\u5b50\u306e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\uff0f\u30c7\u30af\u30ea\u30e1\u30f3\u30c8<\/ul>\n<div>\n<div class=\"post-table\">\u6f14\u7b97\u5b50\u547c\u3073\u540d\u610f\u5473++$a\u524d\u7f6e\u52a0\u7b97\u5b50\\$a\u306b1\u3092\u52a0\u3048\u305f\u5f8c\u3067\\$a\u3092\u8fd4\u3059$a++\u5f8c\u7f6e\u52a0\u7b97\u5b50\\$a\u3092\u8fd4\u3057\u305f\u5f8c\u3067\\$a\u306b1\u3092\u52a0\u3048\u308b&#8211;$a\u524d\u7f6e\u6e1b\u7b97\u5b50\\$a\u304b\u30891\u3092\u5f15\u3044\u305f\u5f8c\u3067\\$a\u3092\u8fd4\u3059$a&#8211;\u5f8c\u7f6e\u6e1b\u7b97\u5b50\\$a\u3092\u8fd4\u3057\u305f\u5f8c\u3067\\$a\u304b\u30891\u3092\u5f15\u304f<\/p>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span>\r\n  <span class=\"nv\">$num1<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$added1<\/span> <span class=\"o\">=<\/span> <span class=\"o\">++<\/span><span class=\"nv\">$num1<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"s1\">'\u524d\u7f6e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u306e\u6642\u306enum1\uff1a'<\/span> <span class=\"p\">,<\/span> <span class=\"nv\">$num1<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"s1\">'\u524d\u7f6e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u306e\u6642\u306eadded1\uff1a'<\/span> <span class=\"p\">,<\/span> <span class=\"nv\">$added1<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"nv\">$num2<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$added2<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$num2<\/span><span class=\"o\">++<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"s1\">'\u5f8c\u7f6e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u306e\u6642\u306enum2\uff1a'<\/span> <span class=\"p\">,<\/span> <span class=\"nv\">$num2<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"s1\">'\u5f8c\u7f6e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u306e\u6642\u306eadded2\uff1a'<\/span> <span class=\"p\">,<\/span> <span class=\"nv\">$added2<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"cm\">\/* \u5b9f\u884c\u7d50\u679c\r\n\u524d\u7f6e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u306e\u6642\u306enum1\uff1a2\r\n\u524d\u7f6e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u306e\u6642\u306eadded1\uff1a2\r\n\u5f8c\u7f6e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u306e\u6642\u306enum2\uff1a2\r\n\u5f8c\u7f6e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u306e\u6642\u306eadded2\uff1a1\u3000\u2190\u3000\u3053\u3053\u6ce8\u76ee\r\n*\/<\/span>\r\n<span class=\"cp\">?&gt;<\/span>\r\n<\/code><\/pre>\n<h4>2-3-3 \u6d6e\u70b9\u6570\u8ba1\u7b97 &#8211; \u5904\u7406\u820d\u5165\u8bef\u5dee<\/p>\n<ul class=\"post-ul\">\u4ee5\u4e0b\u306e\u8a08\u7b97\u5f0f\u3067\u7d50\u679c\u3092\u5207\u308a\u6368\u3066\uff08floor\u95a2\u6570\u3092\u4f7f\u7528\uff09\u3059\u308b\u3068\u30018\u304c\u671f\u5f85\u3055\u308c\u308b\u3068\u601d\u3046\u304c\u7d50\u679c\u306f7\u306b\u306a\u308b<\/ul>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"nb\">floor<\/span><span class=\"p\">((<\/span><span class=\"mf\">0.1<\/span> <span class=\"o\">+<\/span> <span class=\"mf\">0.7<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">10<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ \u7d50\u679c\uff1a7\u00a0<\/span>\r\n\r\n  <span class=\"c1\">\/\/ \u3042\u304f\u307e\u30678\u306e\u8fd1\u4f3c\u5024\u3067\u3042\u308b\u3053\u3068\u304c\u5206\u304b\u308b<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"nb\">sprintf<\/span><span class=\"p\">(<\/span><span class=\"s1\">'%.50f'<\/span><span class=\"p\">,<\/span> <span class=\"p\">(<\/span><span class=\"mf\">0.1<\/span> <span class=\"o\">+<\/span> <span class=\"mf\">0.7<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">10<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ \u7d50\u679c\uff1a7.999999999999999111821...<\/span>\r\n<span class=\"cp\">?&gt;<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u3053\u306e\u6d6e\u52d5\u5c0f\u6570\u70b9\u554f\u984c\u306b\u5bfe\u7b56<\/ul>\n<\/li>\n<\/ul>\n<p>BCMath\u95a2\u6570\u3092\u4f7f\u3063\u3066\u8a08\u7b97\u3059\u308b<br \/>\n\u5207\u308a\u6368\u3066\u51e6\u7406\u524d\u306e\u8a08\u7b97\u7d50\u679c\u3092\u3001\u6587\u5b57\u5217\u578b\u306b\u30ad\u30e3\u30b9\u30c8\u3059\u308b<\/p>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span>\r\n  <span class=\"cm\">\/* (0.1 + 0.7) * 10\u3092\u5207\u308a\u6368\u3066\u3057\u307e\u3059 *\/<\/span>\r\n\r\n  <span class=\"c1\">\/\/ \u6587\u5b57\u5217\u578b\u306b\u30ad\u30e3\u30b9\u30c8\u3059\u308b<\/span>\r\n  <span class=\"nv\">$result1<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">floor<\/span><span class=\"p\">((<\/span><span class=\"n\">string<\/span><span class=\"p\">)(<\/span><span class=\"mf\">0.1<\/span> <span class=\"o\">+<\/span> <span class=\"mf\">0.7<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span> <span class=\"mi\">10<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/ \u7d50\u679c\uff1a8<\/span>\r\n\r\n  <span class=\"c1\">\/\/ BCMath\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b<\/span>\r\n  <span class=\"nv\">$result2<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">floor<\/span><span class=\"p\">((<\/span><span class=\"n\">int<\/span><span class=\"p\">)<\/span><span class=\"nb\">bcmul<\/span><span class=\"p\">(<\/span><span class=\"nb\">bcadd<\/span><span class=\"p\">(<\/span><span class=\"mf\">0.1<\/span><span class=\"p\">,<\/span> <span class=\"mf\">0.7<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">),<\/span> <span class=\"mi\">10<\/span><span class=\"p\">,<\/span> <span class=\"mi\">2<\/span><span class=\"p\">));<\/span> <span class=\"c1\">\/\/ \u7d50\u679c\uff1a8<\/span>\r\n\r\n  <span class=\"k\">echo<\/span> <span class=\"s1\">'$result1:'<\/span> <span class=\"p\">,<\/span> <span class=\"nv\">$result1<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"s1\">'$result2:'<\/span> <span class=\"p\">,<\/span> <span class=\"nv\">$result2<\/span><span class=\"p\">;<\/span>\r\n<span class=\"cp\">?&gt;<\/span>\r\n<\/code><\/pre>\n<h4>2-3-4 \u8fd9\u79cd\u820d\u5165\u8bef\u5dee\u7684\u539f\u56e0\u5728\u4e8e\u65e0\u6cd5\u7cbe\u786e\u5730\u5c06\u5341\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u6570\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u672c\u8cea\u7684\u306a\u539f\u56e0\u306f\u3001\u5c0f\u6570\u304c\u6301\u3064\u5c0f\u6570\u90e8\uff083.14\u306e\u5834\u5408\u300114\u304c\u5c0f\u6570\u90e8\uff09\u30922\u9032\u6570\u306b\u6b63\u78ba\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3067\u304d\u3066\u3044\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>\u56fa\u5b9a\u5c0f\u6570\u70b9\u6570\u578b\u306e\u5834\u5408\u3001\u6271\u3048\u308b\u6841\u6570\u304c\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570\u578b\u3068\u6bd4\u3079\u3066\u5c0f\u3055\u3044\u304c\u6b63\u78ba\u306a\u8a08\u7b97\u7d50\u679c\u304c\u51fa\u305b\u308b\u6027\u8cea\u3092\u6301\u3063\u3066\u3044\u308b<br \/>\n\u6b8b\u5ff5\u306a\u304c\u3089\u3001PHP\u306b\u56fa\u5b9a\u5c0f\u6570\u70b9\u6570\u578b\u306f\u306a\u3044<\/p>\n<h4>\u5728\u4e24\u4e2a\u53d8\u91cf\u4e4b\u95f4\u5171\u4eab\u4e00\u4e2a\u503c &#8211; \u901a\u8fc7\u5f15\u7528\u4f20\u9012<\/p>\n<ul class=\"post-ul\">\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3001&amp;\uff08\u30a2\u30f3\u30d1\u30b5\u30f3\u30c9\uff09\u3092\u4ed8\u3051\u3066\u4ee3\u5165\u3059\u308b\u3053\u3068\u3067\u5024\u3092\u5171\u6709\u3067\u304d\u308b<\/ul>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span>\r\n  <span class=\"nv\">$greeting1<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'Hello'<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$greeting2<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&amp;<\/span><span class=\"nv\">$greeting1<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"c1\">\/\/ \u66f8\u304d\u63db\u3048\u3066\u307f\u308b\u3002\u3000$greeting2\u3092\u66f8\u304d\u63db\u3048\u3066\u3082\u7d50\u679c\u306f\u540c\u3058<\/span>\r\n  <span class=\"nv\">$greeting1<\/span> <span class=\"o\">=<\/span> <span class=\"s1\">'World'<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"c1\">\/\/ \u4e21\u65b9\u306e\u5024\u304c\u5909\u308f\u3063\u3066\u3044\u308b\u3002\u3064\u307e\u308a\u5024\u304c\u5171\u6709\u3055\u308c\u3066\u3044\u308b<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"s1\">'$greeting1:'<\/span> <span class=\"p\">,<\/span> <span class=\"nv\">$greeting1<\/span><span class=\"p\">;<\/span> <span class=\"c1\">\/\/ $greeting1:World<\/span>\r\n  <span class=\"k\">echo<\/span> <span class=\"s1\">'$greeting2:'<\/span> <span class=\"p\">,<\/span> <span class=\"nv\">$greeting2<\/span><span class=\"p\">;<\/span> <span class=\"c1\">\/\/ $greeting2:World<\/span>\r\n<span class=\"cp\">?&gt;<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Go\u8a00\u8a9e\u306a\u3069\u306b\u3042\u308b\u30dd\u30a4\u30f3\u30bf\u306e\u6982\u5ff5\u3068\u306f\u5225\u7269\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e1\u30e2\u30ea\u4e0a\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u306f\u306a\u304f\u3001PHP\u304c\u6301\u3064\u5909\u6570\u30c6\u30fc\u30d6\u30eb\u4e0a\u306e\u4f4d\u7f6e<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306b\u5bfe\u3057\u3066\u3001 \u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\uff0f\u30c7\u30af\u30ea\u30e1\u30f3\u30c8\u306f\u3067\u304d\u306a\u3044\uff1f\uff1f<\/ul>\n<p>&#8230;\u5728\u8def\u4e0a<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56e0\u4e3a\u6211\u8981\u5728\u73b0\u573a\u5199\u771f\u6b63\u7684PHP\u4ee3\u7801\uff0c\u6240\u4ee5\u6211\u51b3\u5b9a\u7c97\u7565\u5730\u9605\u8bfb\u4e00\u4e0b\u4e66\u7c4d\uff0c\u5e76\u5c06\u6211\u5173\u6ce8\u7684\u90e8\u5206\u6574\u7406\u51fa\u6765\u3002 \u7b2c\u4e00\u7ae0 PHP\u521d\u4f53 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30660","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PHP \u6b63\u5f0f\u5f00\u542f\u5165\u95e8\u7bc7 \u32a4 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8ePHP \u6b63\u5f0f\u5f00\u542f\u5165\u95e8\u7bc7 \u32a4\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/php-\u6b63\u5f0f\u5f00\u542f\u5165\u95e8\u7bc7-\u32a4\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP \u6b63\u5f0f\u5f00\u542f\u5165\u95e8\u7bc7 \u32a4\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8ePHP \u6b63\u5f0f\u5f00\u542f\u5165\u95e8\u7bc7 \u32a4\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/php-\u6b63\u5f0f\u5f00\u542f\u5165\u95e8\u7bc7-\u32a4\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-14T05:07:36+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T12:14:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d088937434c4406be0791\/1-0.jpg\" \/>\n<meta name=\"author\" content=\"\u6e05, \u626c\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u626c\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/php-%e6%ad%a3%e5%bc%8f%e5%bc%80%e5%90%af%e5%85%a5%e9%97%a8%e7%af%87-%e3%8a%a4\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/php-%e6%ad%a3%e5%bc%8f%e5%bc%80%e5%90%af%e5%85%a5%e9%97%a8%e7%af%87-%e3%8a%a4\/\",\"name\":\"PHP \u6b63\u5f0f\u5f00\u542f\u5165\u95e8\u7bc7 \u32a4 - Blog - Silicon 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\u32a4\u7684\u6280\u672f\u6587\u7ae0\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/php-%e6%ad%a3%e5%bc%8f%e5%bc%80%e5%90%af%e5%85%a5%e9%97%a8%e7%af%87-%e3%8a%a4\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/php-%e6%ad%a3%e5%bc%8f%e5%bc%80%e5%90%af%e5%85%a5%e9%97%a8%e7%af%87-%e3%8a%a4\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/php-%e6%ad%a3%e5%bc%8f%e5%bc%80%e5%90%af%e5%85%a5%e9%97%a8%e7%af%87-%e3%8a%a4\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"PHP \u6b63\u5f0f\u5f00\u542f\u5165\u95e8\u7bc7 \u32a4\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon 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