{"id":30569,"date":"2023-02-02T08:41:34","date_gmt":"2023-05-12T04:06:46","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8%e4%b8%ad%e6%96%87%e4%b8%ad%ef%bc%8cphp-%e7%9a%84-%e5%92%8c-and-%e6%98%af%e7%9b%b8%e5%90%8c%e7%9a%84%e5%90%97%ef%bc%9f\/"},"modified":"2025-08-12T19:48:36","modified_gmt":"2025-08-12T11:48:36","slug":"%e5%9c%a8%e4%b8%ad%e6%96%87%e4%b8%ad%ef%bc%8cphp-%e7%9a%84-%e5%92%8c-and-%e6%98%af%e7%9b%b8%e5%90%8c%e7%9a%84%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8%e4%b8%ad%e6%96%87%e4%b8%ad%ef%bc%8cphp-%e7%9a%84-%e5%92%8c-and-%e6%98%af%e7%9b%b8%e5%90%8c%e7%9a%84%e5%90%97%ef%bc%9f\/","title":{"rendered":"\u5728\u4e2d\u6587\u4e2d\uff0cPHP \u7684 &#038;&#038; \u548c and \u662f\u76f8\u540c\u7684\u5417\uff1f"},"content":{"rendered":"<p>\u6700\u8fd1\u6211\u6b63\u5728\u8003\u8651\u83b7\u5f97PHP\u8d44\u683c\uff0c\u800c\u4e14\u6211\u6253\u7b97\u9009\u62e9\u56fd\u9645\u8ba4\u8bc1\uff0c\u6240\u4ee5\u6211\u6b63\u5728\u5b66\u4e60Zend\u516c\u53f8\u7684Zend Certified PHP Engineer\u3002<\/p>\n<p>\u5728\u5176\u4e2d\uff0c\u6211\u53d1\u73b0\u4e86\u5173\u4e8e\u903b\u8f91\u8fd0\u7b97\u7684\u4ee4\u4eba\u5927\u5f00\u773c\u754c\u7684\u4fe1\u606f\uff0c\u6240\u4ee5\u6211\u60f3\u5206\u4eab\u4e00\u4e0b\u3002<\/p>\n<h2>\u603b\u7ed3\uff1a<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">PHP \u306e\u8ad6\u7406\u6f14\u7b97\u5b50\u306f\u82f1\u8a9e\u3067\u3082\u66f8\u3051\u308b<\/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\">\u8a18\u53f7\u3067\u66f8\u304f\u65b9\u304c\u82f1\u8a9e\u3067\u66f8\u304f\u65b9\u3088\u308a\u51e6\u7406\u304c\u5148\u306b\u884c\u308f\u308c\u308b<\/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\">\u3046\u307e\u3044\u3053\u3068\u4f7f\u3048\u3070\u62ec\u5f27\u5730\u7344\u3092\u8efd\u6e1b\u3067\u304d\u308b\uff08\u304c\u3001\u304a\u3059\u3059\u3081\u306f\u3057\u306a\u3044\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u300c\u304b\u3064\u300d\u300c\u307e\u305f\u306f\u300d\u306e\u610f\u5473\u3067\u4f7f\u3046\u306a\u3089\u8a18\u53f7\u3067\u66f8\u3044\u305f\u65b9\u304c\u5b89\u5168<\/ul>\n<h2>\u903b\u8f91\u8fd0\u7b97\u7b26\u662f\u6307<\/h2>\n<p>\u903b\u8f91\u8fd0\u7b97\u7b26\u662f\u7528\u4e8e\u5bf9\u771f\u503c\u8fdb\u884c\u8fd0\u7b97\u7684\u8fd0\u7b97\u7b26\u3002<\/p>\n<p>&amp;&amp;: \u6f14\u7b97\u5b50\u306e\u4e21\u5074\u304c true \u306e\u5834\u5408\u306b\u9650\u308a\u3001\u7d50\u679c\u304c true \u3068\u306a\u308b\u3002\u300c\u8ad6\u7406\u7a4d\u300d\u3068\u3082\u3044\u3046\u3002<\/p>\n<p>||: \u6f14\u7b97\u5b50\u306e\u7247\u5074\u304c true \u306e\u5834\u5408\u306b\u7d50\u679c\u304c true \u3068\u306a\u308b\u3002\u4e21\u5074\u304c true \u3067\u3082\u3088\u3044\u3002\u300c\u8ad6\u7406\u548c\u300d\u3068\u3082\u3044\u3046\u3002<\/p>\n<p>!: \u771f\u507d\u5024\u306e\u5de6\u5074\u306b\u3064\u3044\u3066\u3001\u771f\u507d\u5024\u3092\u53cd\u8ee2\u3055\u305b\u308b\u3002\u4f8b\u3048\u3070 !true \u306f false \u306b\u306a\u308b\u3002<\/p>\n<p>\u8fd9\u4e9b\u7b26\u53f7\u4e5f\u6709\u82f1\u6587\u8868\u8fbe\u3002<\/p>\n<p>and \u306f\u4e0a\u8a18\u306e &amp;&amp; \u306e\u8aac\u660e\u3068\u540c\u3058\u52d5\u4f5c\u3092\u3059\u308b\u3002<\/p>\n<p>or \u306f\u4e0a\u8a18\u306e || \u306e\u8aac\u660e\u3068\u540c\u3058\u52d5\u4f5c\u3092\u3059\u308b\u3002<\/p>\n<p>xor: \u6f14\u7b97\u5b50\u306e\u3069\u3061\u3089\u304b\u7247\u5074\u304c true \u306e\u5834\u5408\u306b\u9650\u308a\u3001\u7d50\u679c\u304c true \u3068\u306a\u308b\u3002\u4e21\u5074\u304c true \u306e\u5834\u5408\u306f false \u3068\u306a\u308b\u3002<\/p>\n<h2>\u9019\u662f\u4e00\u500b\u5148\u8a08\u7b97\u908f\u8f2f\u548c\u7684\u9677\u9631\u3002<\/h2>\n<p>\u5728\u4f18\u5148\u7ea7\u4e2d\uff0c\u5bf9\u4e8e &amp;&amp; \u548c || \u8fd0\u7b97\u7b26\uff0c\u4f18\u5148\u4f7f\u7528 &amp;&amp;\uff1b\u800c\u5bf9\u4e8e and \u548c or \u8fd0\u7b97\u7b26\uff0c\u4f18\u5148\u4f7f\u7528 and\u3002<\/p>\n<p>\u90a3\u4e48\uff0c\u90a3\u4e9b\u60c5\u51b5\u4e0b\u600e\u4e48\u529e\u5462\uff1f<\/p>\n<p>&amp;&amp; \u3068 or \u6307\u6458\u304c\u3042\u308a\u307e\u3057\u305f\u306e\u3067\u524a\u9664\u3057\u307e\u3057\u305f<\/p>\n<p>and \u3068 ||<\/p>\n<p>\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u6839\u636e\u903b\u8f91\u548c\u4e0e\u903b\u8f91\u79ef\u7684\u8ba1\u7b97\u987a\u5e8f\u5c06\u7ed3\u679c\u6539\u53d8\u7684\u4f8b\u5b50\u6765\u8fdb\u884c\u786e\u8ba4\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"cp\">&lt;?php<\/span>\r\n\r\n<span class=\"k\">echo<\/span> <span class=\"s2\">\"'and' \u3068 '||' \u3067\u306f \"<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"kc\">true<\/span> <span class=\"o\">||<\/span> <span class=\"kc\">false<\/span> <span class=\"k\">and<\/span> <span class=\"kc\">false<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">echo<\/span> <span class=\"s2\">\"'and' \u304c\u512a\u5148\u3055\u308c\u308b\"<\/span><span class=\"p\">,<\/span> <span class=\"kc\">PHP_EOL<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">echo<\/span> <span class=\"s2\">\"'||' \u304c\u512a\u5148\u3055\u308c\u308b\"<\/span><span class=\"p\">,<\/span> <span class=\"kc\">PHP_EOL<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>'and' \u3068 '||' \u3067\u306f '||' \u304c\u512a\u5148\u3055\u308c\u308b\r\n<\/code><\/pre>\n<p>\u4f60\u77a7\uff0c\u5c45\u7136\u5148\u8ba1\u7b97\u7b26\u53f7\uff0c\u5c24\u5176\u662f\u5728\u7b2c\u4e8c\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5173\u4e8e\u903b\u8f91\u4e58\u548c\u903b\u8f91\u548c\u7684\u987a\u5e8f\u7684\u201c\u795e\u8bdd\u201d\u90fd\u5d29\u584c\u4e86\u3002<\/p>\n<p>\u8d76\u5feb\u67e5\u770b\u624b\u518c\u4e2d\u7684\u8fd0\u7b97\u7b26\u90e8\u5206\uff01<\/p>\n<h2>\u6839\u636e\u624b\u518c\u6240\u793a<\/h2>\n<p>\u6839\u636e\u624b\u518c\u4e0a\u7684\u8fd0\u7b97\u7b26\u4f18\u5148\u7ea7\u8868\uff0c\u903b\u8f91\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u987a\u5e8f\u5982\u4e0b\u3002<\/p>\n<div>\n<div class=\"post-table\">\u9806\u4f4d\u6f14\u7b97\u5b501<code>!<\/code>2<code>&amp;&amp;<\/code>3<code>||<\/code>4<code>and<\/code>5<code>xor<\/code>6<code>or<\/code><\/div>\n<\/div>\n<p>\u53ef\u4ee5\u770b\u5230\u7b26\u53f7\u7684\u6392\u540d\u66f4\u9ad8\u3002<\/p>\n<p>\u5728PHP\u4e2d\uff0c&amp;&amp;\u548cand\uff0c||\u548cor\u4e4b\u95f4\u5e76\u4e0d\u5b8c\u5168\u5177\u6709\u76f8\u540c\u7684\u610f\u4e49\uff0c\u56e0\u6b64\u5728\u4f7f\u7528\u4e4b\u524d\u9700\u8981\u7406\u89e3\u5b83\u4eec\u7684\u884c\u4e3a\u3002<\/p>\n<h2>\uff08\u4e2a\u4eba\u4e0d\u63a8\u8350\uff09\u6709\u52a9\u4e8e\u51cf\u5c11\u62ec\u53f7\u4f7f\u7528\u7684\u4f8b\u5b50<\/h2>\n<p>\u5728\u8fdb\u884cPHP\u5f00\u53d1\u65f6\uff0c\u6761\u4ef6\u5206\u652f\u53ef\u80fd\u4f1a\u53d8\u5f97\u975e\u5e38\u590d\u6742\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0if\u8bed\u53e5\u53d8\u6210\u8fd9\u79cd\u6837\u5b50\u7684\u60c5\u51b5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">if<\/span> <span class=\"p\">((<\/span><span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">\u5165\u5834\u5238\u3092\u6301\u3063\u3066\u3044\u308b<\/span><span class=\"p\">()<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"p\">(<\/span><span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">\u3061\u3083\u3093\u3068\u5217\u306b\u4e26\u3093\u3067\u308b<\/span><span class=\"p\">()<\/span> <span class=\"o\">||<\/span> <span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">is\u304a\u308a\u3053\u3046\u3055\u3093<\/span><span class=\"p\">()))<\/span> <span class=\"o\">||<\/span> <span class=\"p\">(<\/span><span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">\u7279\u5225\u306a\u5238\u3092\u6301\u3063\u3066\u3044\u308b<\/span><span class=\"p\">()<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">is55\u6b73\u4ee5\u4e0a\u3067\u3042\u308b<\/span><span class=\"p\">())<\/span>\r\n<span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c1\">\/\/ \u51e6\u7406<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u53ea\u8981\u6b63\u786e\u7406\u89e3\u903b\u8f91\u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7\uff0c\u5c31\u53ef\u4ee5\u4e0d\u4f7f\u7528\u62ec\u53f7\u6765\u5199\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">if<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">\u5165\u5834\u5238\u3092\u6301\u3063\u3066\u3044\u308b<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"k\">and<\/span> <span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">\u3061\u3083\u3093\u3068\u5217\u306b\u4e26\u3093\u3067\u308b<\/span><span class=\"p\">()<\/span> <span class=\"o\">||<\/span> <span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">is\u304a\u308a\u3053\u3046\u3055\u3093<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"k\">or<\/span> <span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">\u7279\u5225\u306a\u5238\u3092\u6301\u3063\u3066\u3044\u308b<\/span><span class=\"p\">()<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"nv\">$person<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">is55\u6b73\u4ee5\u4e0a\u3067\u3042\u308b<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c1\">\/\/ \u51e6\u7406<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u4e2d\u6587\u4e2d\u540c\u4e49\u6539\u8ff0\u5982\u4e0b\uff1a<br \/>\n\u4f46\u6211\u4e2a\u4eba\u89c9\u5f97\u8fd9\u79cd\u65b9\u5f0f\u53ef\u80fd\u4e0d\u592a\u53d7\u6b22\u8fce\u3002<br \/>\n\u539f\u56e0\u662f\u5b83\u4f7f\u7528\u4e86\u8d8a\u6765\u8d8a\u591a\u7684\u7b26\u53f7\uff0c\u8ba9\u9605\u8bfb\u53d8\u5f97\u4e0d\u76f4\u89c2\uff0c\u800c\u4e14\u8981\u6c42\u5bf9PHP\u903b\u8f91\u8fd0\u7b97\u7b26\u6709\u6df1\u5165\u7684\u7406\u89e3\u3002<br \/>\n\u5b9e\u9645\u4e0a\uff0c\u5728\u7f16\u5199\u5982\u6b64\u590d\u6742\u7684\u6761\u4ef6\u4e4b\u524d\uff0c\u5efa\u8bae\u5148\u91cd\u65b0\u68c0\u67e5\u4ee3\u7801\u672c\u8eab\u3002<\/p>\n<p>\u5728\u9700\u8981\u6839\u636e\u516c\u53f8\u63d0\u4f9b\u7684\u670d\u52a1\u9009\u62e9\u8bed\u8a00\u7684\u516c\u53f8\uff0c\u4ee5\u53ca\u62db\u8058\u4e86\u5927\u91cf\u65b0\u4eba\u7684\u516c\u53f8\u4e2d\uff0c\u5efa\u8bae\u7ee7\u7eed\u4f7f\u7528\u62ec\u53f7\u4f5c\u4e3a\u8f85\u52a9\uff0c\u5728\u903b\u8f91\u8868\u8fbe\u4e2d\u4ec5\u4f7f\u7528&amp;&amp;\u548c||\u3002<\/p>\n<p>\u60f3\u8981\u53d6\u5f97PHP\u8d44\u683c\u7684\u4eba\uff0c\u8bf7\u4e0e\u6211\u4e00\u8d77\u52aa\u529b\u5b66\u4e60\u3002<br \/>\n\u4e3a\u4e86\u53d6\u5f97\u8d44\u683c\uff0c\u9700\u8981\u8be6\u7ec6\u7406\u89e3\u8bed\u8a00\u89c4\u8303\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u6211\u6b63\u5728\u8003\u8651\u83b7\u5f97PHP\u8d44\u683c\uff0c\u800c\u4e14\u6211\u6253\u7b97\u9009\u62e9\u56fd\u9645\u8ba4\u8bc1\uff0c\u6240\u4ee5\u6211\u6b63\u5728\u5b66\u4e60Zend\u516c\u53f8\u7684Zend Certified [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30569","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>\u5728\u4e2d\u6587\u4e2d\uff0cPHP \u7684 &amp;&amp; \u548c and \u662f\u76f8\u540c\u7684\u5417\uff1f 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