{"id":30299,"date":"2023-12-31T08:46:47","date_gmt":"2023-02-22T14:38:59","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php%e3%80%91%e5%87%bd%e6%95%b0\/"},"modified":"2025-08-12T18:31:15","modified_gmt":"2025-08-12T10:31:15","slug":"%e3%80%90php%e3%80%91%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php%e3%80%91%e5%87%bd%e6%95%b0\/","title":{"rendered":"\u3010PHP\u3011\u51fd\u6570"},"content":{"rendered":"<p>\u9019\u7bc7\u6587\u7ae0\u662f\u53c3\u8003\u4ee5\u4e0b\u66f8\u7c4d\u6240\u64b0\u5beb\u7684\u3002<\/p>\n<h2>&#8211; PHP\u81ea\u5b66\u6307\u5357 \u7b2c\u4e09\u7248<\/h2>\n<h1>\u6709\u5173\u8bed\u6cd5\u8868\u8fbe\u7684\u5199\u6cd5<\/h1>\n<pre class=\"post-pre\"><code>                       <span class=\"n\">\u4eee\u5f15\u6570<\/span>\r\n  <span class=\"err\">\u250c<\/span><span class=\"n\">\u623b\u308a\u5024\u306e\u30c7\u30fc\u30bf<\/span>        <span class=\"err\">\u250c\u2500\u2534\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510<\/span>\r\n<span class=\"n\">void<\/span>  <span class=\"nb\">asort<\/span> <span class=\"p\">(<\/span> <span class=\"k\">array<\/span> <span class=\"nv\">$array<\/span> <span class=\"p\">[,<\/span> <span class=\"n\">int<\/span> <span class=\"nv\">$sort_flags<\/span> <span class=\"o\">=<\/span> <span class=\"no\">SORT_REGULAR<\/span><span class=\"p\">])<\/span>        \r\n  <span class=\"n\">\u95a2\u6570\u540d<\/span><span class=\"err\">\u2500\u2518<\/span>       <span class=\"err\">\u2514\u2500<\/span><span class=\"n\">\u5f15\u6570\u306e\u30c7\u30fc\u30bf\u578b<\/span><span class=\"err\">\u2500\u2518<\/span>                       <span class=\"err\">\u2514\u2500<\/span><span class=\"n\">\u30c7\u30d5\u30a9\u30eb\u30c8\u5024<\/span>\r\n<\/code><\/pre>\n<blockquote><p>\u6765\u6e90\uff1aPHP\u81ea\u5b66 \u7b2c3\u7248<\/p><\/blockquote>\n<p>\u7528\u4e2d\u6587\u8fdb\u884c\u672c\u5730\u5316\u7684\u8f6c\u8ff0\uff0c\u4ec5\u9700\u63d0\u4f9b\u4e00\u4e2a\u9009\u9879\uff1a<br \/>\n\u88ab\u65b9\u62ec\u53f7\u62ec\u8d77\u6765\u7684\u53c2\u6570\u53ef\u4ee5\u7701\u7565\u4e0d\u5199\u3002<\/p>\n<p>\u6570\u636e\u7c7b\u578b<\/p>\n<div>\n<div class=\"post-table\">\u540d\u524d\u8aac\u660emixed\u8907\u6570\u306e\u30c7\u30fc\u30bf\u3092\u8fd4\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b(\u623b\u308a\u5024\u306e\u5834\u5408)\u3001\u307e\u305f\u306f\u8907\u6570\u306e\u30c7\u30fc\u30bf\u578b\u3092\u6307\u5b9a\u3067\u304d\u308b(\u5f15\u6570\u306e\u5834\u5408)void\u623b\u308a\u5730\u304c\u306a\u3044<\/div>\n<\/div>\n<h1>\u5b57\u7b26\u4e32\u51fd\u6570<\/h1>\n<h2>mb_strlen\u7684\u7528\u9014\u662f\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002<\/h2>\n<p>\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff0c\u4e0estrlen\u7684\u533a\u522b\u5728\u4e8e\u662f\u5426\u652f\u6301\u591a\u5b57\u8282\u5b57\u7b26\u3002<\/p>\n<h2>\u622a\u53d6\u5b57\u7b26\u4e32<\/h2>\n<p>\u4ece\u5b57\u7b26\u4e32\u4e2d\u63d0\u53d6\u7279\u5b9a\u5b57\u7b26\u4e32\u53ef\u4ee5\u5728\u53c2\u6570\u4e2d\u6307\u5b9a\u8d1f\u6570\uff0c\u4f46\u8fd9\u6837\u505a\u662f\u5426\u6709\u597d\u5904\u5462\uff1f<\/p>\n<h2>\u6253\u5370<\/h2>\n<h3>\u53ef\u4ee5\u5305\u542b\u5728\u5360\u4f4d\u7b26\uff08\u8f6c\u6362\u6307\u5b9a\u7b26\uff09\u4e2d\u7684\u6307\u5b9a\u7b26\u3002<\/h3>\n<h4>\u7b26\u53f7\u6307\u6d3e\u5b50<\/h4>\n<p>\u6307\u5b9a\u6570\u503c\u7684\u7b26\u53f7<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"nv\">$num<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">120<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nv\">$num2<\/span> <span class=\"o\">=<\/span> <span class=\"o\">-<\/span><span class=\"mi\">120<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nb\">printf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\u6570\u5024\u306f%+d\u3067\u3059<\/span><span class=\"se\">\\n<\/span><span class=\"s2\">\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$num<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/\u6570\u5024\u306f+120\u3067\u3059<\/span>\r\n<span class=\"nb\">printf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\u6570\u5024\u306f%-d\u3067\u3059<\/span><span class=\"se\">\\n<\/span><span class=\"s2\">\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$num<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/\u6570\u5024\u306f120\u3067\u3059<\/span>\r\n<span class=\"nb\">printf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\u6570\u5024\u306f+%d\u3067\u3059<\/span><span class=\"se\">\\n<\/span><span class=\"s2\">\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$num2<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/\u6570\u5024\u306f+-120\u3067\u3059<\/span>\r\n<span class=\"nb\">printf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\u6570\u5024\u306f-%d\u3067\u3059<\/span><span class=\"se\">\\n<\/span><span class=\"s2\">\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$num2<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/\u6570\u5024\u306f--120\u3067\u3059<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u4e2d\u6587\u4e2d\uff0c\u8d1f\u6570\u9ed8\u8ba4\u5e26\u6709\u8d1f\u53f7\uff08-\uff09\u3002<br \/>\n\u5982\u679c\u6b63\u6570\u6307\u5b9a\u4e86\u6b63\u53f7\uff08+\uff09\uff0c\u5219\u5f3a\u5236\u6dfb\u52a0\u6b63\u53f7\uff08+\uff09\u3002<\/p>\n<h4>\u586b\u5145\u6307\u5b9a\u7b26<\/h4>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u7528\u6765\u586b\u5145\u4e0d\u8db3\u4f4d\u6570\u7684\u5b57\u7b26\u662f\u7a7a\u767d\uff08\u7a7a\u683c\uff09\u3002\u82e5\u6307\u5b9a\u4e3a0\uff0c\u5219\u586b\u5145\u4e3a0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$num<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">120<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nb\">printf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\u6570\u5024\u306f%05d\u3067\u3059\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$num<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/\u6570\u5024\u306f00120\u3067\u3059<\/span>\r\n<\/code><\/pre>\n<p>\u9664\u4e860\u4ee5\u5916\uff0c\u8fd8\u53ef\u4ee5\u6307\u5b9a\u5176\u4ed6\u9009\u62e9\uff0c\u6b64\u65f6\u5728\u5b57\u7b26\u524d\u9762\u52a0\u4e0a'(\u5355\u5f15\u53f7)\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$num<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">120<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nb\">printf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\u6570\u5024\u306f%'_5d\u3067\u3059\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$num<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/\u6570\u5024\u306f__120\u3067\u3059<\/span>\r\n<\/code><\/pre>\n<h4>\u5bf9\u9f50\u8bf4\u660e\u7b26<\/h4>\n<p>\u5c06\u6587\u672c\u5bf9\u9f50\u3002\u9ed8\u8ba4\u53f3\u5bf9\u9f50\u3002<br \/>\n&#8211; \u6307\u5b9a\u5de6\u5bf9\u9f50\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$num<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">120<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nb\">printf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\u6570\u5024\u306f%-5d\u3067\u3059\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$num<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/\u6570\u5024\u306f120  \u3067\u3059<\/span>\r\n<\/code><\/pre>\n<h4>\u8868\u793a\u8303\u56f4\u8bbe\u4e3a\u5b50\u7ea7<\/h4>\n<p>\u6307\u5b9a\u6700\u5c0f\u7684\u5b57\u7b26\u957f\u5ea6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$num<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">120<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nb\">printf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\u6570\u5024\u306f%5d\u3067\u3059\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$num<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/\u6570\u5024\u306f  120\u3067\u3059<\/span>\r\n<\/code><\/pre>\n<h4>\u7cbe\u5ea6\u8bbe\u5b9a\u5668<\/h4>\n<p>\u6307\u5b9a\u6d6e\u70b9\u6570\u7684\u5c0f\u6570\u70b9\u540e\u7684\u4f4d\u6570\u663e\u793a<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$num<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">120<\/span><span class=\"p\">;<\/span>\r\n<span class=\"nb\">printf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"\u6570\u5024\u306f%.5f\u3067\u3059\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$num<\/span><span class=\"p\">);<\/span><span class=\"c1\">\/\/\u6570\u5024\u306f120.00000\u3067\u3059<\/span>\r\n<\/code><\/pre>\n<p>\u7c7b\u578b\u6307\u5b9a<\/p>\n<div>\n<div class=\"post-table\">\u540d\u524d\u5f15\u6570\u8868\u793ab\u6574\u65702\u9032\u6570c\u6574\u6570ASCIId\u6574\u657010\u9032\u6570e,E<br \/>\n\u6307\u6570\u8868\u8a18\u3068\u3057\u3066\u51e6\u7406fdouble\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570Ffloat\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570o\u6574\u65708\u9032\u6570s\u6587\u5b57\u5217<br \/>\nx\u6574\u657016\u9032\u6570(\u5c0f\u6587\u5b57)X\u6574\u657016\u9032\u6570(\u5927\u6587\u5b57)<\/div>\n<\/div>\n<h1>\u6570\u7ec4\u51fd\u6570<\/h1>\n<h2>array_push\uff1a\u5c06\u5143\u7d20\u63a8\u5165\u6570\u7ec4\u4e2d\u3002<br \/>\narray_unshift\uff1a\u5c06\u5143\u7d20\u63a8\u5165\u6570\u7ec4\u7684\u5f00\u5934\u3002<br \/>\narray_pop\uff1a\u4ece\u6570\u7ec4\u4e2d\u5f39\u51fa\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u3002<br \/>\narray_shift\uff1a\u4ece\u6570\u7ec4\u4e2d\u5f39\u51fa\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/h2>\n<p>\u53ef\u4ee5\u5411\u6570\u7ec4\u6dfb\u52a0\u503c\u3002<\/p>\n<h1>\u5f15\u7528\u8d44\u6599<\/h1>\n<ul class=\"post-ul\">\u72ec\u7fd2PHP \u7b2c3\u7248<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u9019\u7bc7\u6587\u7ae0\u662f\u53c3\u8003\u4ee5\u4e0b\u66f8\u7c4d\u6240\u64b0\u5beb\u7684\u3002 &#8211; PHP\u81ea\u5b66\u6307\u5357 \u7b2c\u4e09\u7248 \u6709\u5173\u8bed\u6cd5\u8868\u8fbe\u7684\u5199\u6cd5 \u4eee\u5f15\u6570 \u250c\u623b\u308a\u5024 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30299","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>\u3010PHP\u3011\u51fd\u6570 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u3010PHP\u3011\u51fd\u6570\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\/\u3010php\u3011\u51fd\u6570\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010PHP\u3011\u51fd\u6570\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u3010PHP\u3011\u51fd\u6570\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010php\u3011\u51fd\u6570\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-02-22T14:38:59+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T10:31:15+00:00\" \/>\n<meta name=\"author\" content=\"\u9038, \u79d1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u9038, \u79d1\" \/>\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\/%e3%80%90php%e3%80%91%e5%87%bd%e6%95%b0\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90php%e3%80%91%e5%87%bd%e6%95%b0\/\",\"name\":\"\u3010PHP\u3011\u51fd\u6570 - Blog - Silicon 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