{"id":2299,"date":"2024-06-05T20:10:56","date_gmt":"2024-06-05T12:10:56","guid":{"rendered":"https:\/\/cn.raksmart.com\/blog\/host\/3697.html"},"modified":"2024-06-05T20:10:56","modified_gmt":"2024-06-05T12:10:56","slug":"%e4%bb%80%e4%b9%88%e6%98%afphp%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e5%8f%8a%e5%8f%98%e9%87%8f","status":"publish","type":"post","link":"https:\/\/cn.raksmart.com\/blog\/knowledge\/2299.html","title":{"rendered":"\u4ec0\u4e48\u662fPHP\u6570\u636e\u7c7b\u578b\u53ca\u53d8\u91cf"},"content":{"rendered":"
\n

raksmart<\/a>\u9999\u6e2f\u670d\u52a1\u5668\u5546<\/strong><\/a>\u4e3a\u60a8\u5206\u4eab\u4ec0\u4e48\u662fPHP\u6570\u636e\u7c7b\u578b\u53ca\u53d8\u91cf<\/p>\n

PHP \u6570\u636e\u7c7b\u578b<\/p>\n

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PHP \u662f\u4e00\u79cd\u677e\u6563\u7c7b\u578b\u7684\u8bed\u8a00;\u5b83\u6ca1\u6709\u660e\u786e\u5b9a\u4e49\u7684\u6570\u636e\u7c7b\u578b\u3002PHP \u901a\u8fc7\u5206\u6790\u6240\u63d0\u4f9b\u6570\u636e\u7684\u5c5e\u6027\u6765\u786e\u5b9a\u6570\u636e\u7c7b\u578b\u3002PHP \u9690\u5f0f\u652f\u6301\u4ee5\u4e0b\u6570\u636e\u7c7b\u578b<\/p>\n

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echo PHP_INT_MAX;<\/p>\n

?><\/p>\n

\u8f93\u51fa\uff1a9223372036854775807<\/p>\n

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\u5b57\u7b26\u4e32\u2014\u2014\u4f8b\u5982Hello World<\/p>\n

\u5e03\u5c14\u503c\u2014\u2014\u4f8b\u5982\u771f\u6216\u5047\u3002<\/p>\n

\u5728\u6211\u4eec\u66f4\u8be6\u7ec6\u5730\u8ba8\u8bbaPHP \u6570\u636e\u7c7b\u578b\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u9996\u5148\u8ba8\u8bba\u53d8\u91cf\u3002<\/p>\n

PHP \u53d8\u91cf<\/p>\n

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\u8fd9\u540c\u6837\u9002\u7528\u4e8e\u53d8\u91cf\u3002\u53d8\u91cf\u7528\u4e8e\u5b58\u50a8\u6570\u636e\u5e76\u5728\u9700\u8981\u65f6\u63d0\u4f9b\u5b58\u50a8\u7684\u6570\u636e\u3002\u5c31\u50cf\u5728\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u4e2d\u4e00\u6837\uff0cPHP \u4e5f\u652f\u6301\u53d8\u91cf\u3002\u73b0\u5728\u8ba9\u6211\u4eec\u770b\u770b\u5728PHP \u4e2d\u521b\u5efa\u53d8\u91cf\u65f6\u9075\u5faa\u7684\u89c4\u5219\u3002<\/p>\n

\u6240\u6709\u53d8\u91cf\u540d\u5fc5\u987b\u4ee5\u7f8e\u5143\u7b26\u53f7\u5f00\u5934\uff0c\u4f8b\u5982<\/p>\n

\u4e86\u89e3PHP \u53d8\u91cf\u3001\u8fd0\u7b97\u7b26\u548c\u6570\u636e\u7c7b\u578b<\/p>\n

\u53d8\u91cf\u540d\u533a\u5206\u5927\u5c0f\u5199;\u8fd9\u610f\u5473\u7740$my_var \u4e0d\u540c\u4e8e$MY_VAR<\/p>\n

\u4e86\u89e3PHP \u53d8\u91cf\u3001\u8fd0\u7b97\u7b26\u548c\u6570\u636e\u7c7b\u578b<\/p>\n

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\u4e86\u89e3PHP \u53d8\u91cf\u3001\u8fd0\u7b97\u7b26\u548c\u6570\u636e\u7c7b\u578b<\/p>\n

\u53d8\u91cf\u540d\u4e0d\u80fd\u5305\u542b\u4efb\u4f55\u7a7a\u683c\uff0c\u201c$first name\u201d\u4e0d\u662f\u5408\u6cd5\u7684\u53d8\u91cf\u540d\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e0b\u5212\u7ebf\u4ee3\u66ff\u7a7a\u683c\uff0c\u4f8b\u5982 $first_name\u3002\u60a8\u4e0d\u80fd\u4f7f\u7528\u7f8e\u5143\u6216\u51cf\u53f7\u7b49\u5b57\u7b26\u6765\u5206\u9694\u53d8\u91cf\u540d\u3002\u63a8\u8350\u9605\u8bfb\uff1a\u300a\u5982\u4f55\u4e3a\u60a8\u7684 WordPress \u7f51\u7ad9\u66f4\u65b0 PHP\uff1f\u300b<\/a><\/p>\n

\u4e86\u89e3 PHP \u53d8\u91cf\u3001\u8fd0\u7b97\u7b26\u548c\u6570\u636e\u7c7b\u578b<\/p>\n

\u73b0\u5728\u8ba9\u6211\u4eec\u770b\u770bPHP \u5982\u4f55\u6839\u636e\u63d0\u4f9b\u7684\u6570\u636e\u7684\u5c5e\u6027\u6765\u786e\u5b9a\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

$my_var = 1;<\/p>\n

echo $my_var;<\/p>\n

?><\/p>\n

\u8f93\u51fa\uff1a1<\/p>\n

\u6d6e\u70b9\u6570\u5b57<\/p>\n

$my_var = 3.14;<\/p>\n

echo $my_var;<\/p>\n

?><\/p>\n

\u8f93\u51fa\uff1a3.14<\/p>\n

\u5b57\u7b26\u4e32<\/p>\n

$my_var =\u201dHypertext Pre Processor\u201d;<\/p>\n

echo $my_var;<\/p>\n

?><\/p>\n

\u8f93\u51fa\uff1a<\/p>\n

\u8d85\u6587\u672c\u9884\u5904\u7406\u5668<\/p>\n

\u53d8\u91cf\u7684\u4f7f\u7528<\/p>\n

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\u53d8\u91cf\u7c7b\u578b\u94f8\u9020<\/p>\n

\u5728C#\u7b49\u8bed\u8a00\u4e2d\u4f7f\u7528\u53d8\u91cf\u6267\u884c\u7b97\u672f\u8ba1\u7b97\u9700\u8981\u53d8\u91cf\u5177\u6709\u76f8\u540c\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

\u7c7b\u578b\u8f6c\u6362\u662f\u5c06\u53d8\u91cf\u6216\u503c\u8f6c\u6362\u4e3a\u6240\u9700\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

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PHP \u4e2d\u7684\u7c7b\u578b\u8f6c\u6362\u7531\u89e3\u91ca\u5668\u5b8c\u6210\u3002<\/p>\n

\u5728C# \u7b49\u5176\u4ed6\u8bed\u8a00\u4e2d\uff0c\u60a8\u5fc5\u987b\u5f3a\u5236\u8f6c\u6362\u53d8\u91cf\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u663e\u793a\u4e86C# \u4e2d\u7684\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n

PHP \u8fd8\u5141\u8bb8\u60a8\u8f6c\u6362\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

\u8fd9\u79f0\u4e3a\u663e\u5f0f\u5f3a\u5236\u8f6c\u6362\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u6f14\u793a\u4e86\u663e\u5f0f\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n

$a = 1;<\/p>\n

$b = 1.5;<\/p>\n

$c = $a + $b;<\/p>\n

$c = $a + (int) $b;<\/p>\n

echo $c;<\/p>\n

?><\/p>\n

\u8f93\u51fa\uff1a2<\/p>\n

\u4ee5\u4e0a\u4ee3\u7801\u8f93\u51fa2 var_dump \u51fd\u6570\u7528\u4e8e\u786e\u5b9a\u6570\u636e\u7c7b\u578b\u3002\u4e0b\u9762\u7684\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528var_dump \u51fd\u6570\u3002<\/p>\n

$a = 1;<\/p>\n

var_dump($a);<\/p>\n

$b = 1.5;<\/p>\n

var_dump($b);<\/p>\n

$c = \u201cI Love PHP\u201d;<\/p>\n

var_dump($c);<\/p>\n

$d = true;<\/p>\n

var_dump($d);<\/p>\n

?><\/p>\n

\u8f93\u51fa\uff1aint(1) float(1.5) string(10) \u201cI Love PHP\u201d bool(true)<\/p>\n

\u4ee5\u4e0a\u5c31\u662f\u4ec0\u4e48\u662fPHP\u6570\u636e\u7c7b\u578b\u53ca\u53d8\u91cf\u5168\u90e8\u5185\u5bb9\u3002\u63a8\u8350\u76f8\u5173\u9605\u8bfb\uff1a\u300aWordPress\u4e2d\u7684WP-config.php\u662f\u4ec0\u4e48\uff1f\u300b<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

raksmart\u9999\u6e2f\u670d\u52a1\u5668\u5546\u4e3a\u60a8\u5206\u4eab\u4ec0\u4e48\u662fPHP\u6570\u636e\u7c7b\u578b\u53ca\u53d8\u91cf PHP \u6570\u636e\u7c7b\u578b \u6570\u636e\u7c7b\u578b\u662f\u6839\u636e\u6570\u636e\u2026 <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[721],"class_list":["post-2299","post","type-post","status-publish","format-standard","hentry","category-knowledge","tag-php"],"_links":{"self":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/posts\/2299","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/comments?post=2299"}],"version-history":[{"count":0,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/posts\/2299\/revisions"}],"wp:attachment":[{"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/media?parent=2299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/categories?post=2299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.raksmart.com\/blog\/wp-json\/wp\/v2\/tags?post=2299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}