php實現簡單的文法高亮函數執行個體分析，高亮執行個體分析_PHP教程

php實現簡單的文法高亮函數執行個體分析，高亮執行個體分析

本文執行個體講述了php實現簡單的文法高亮函數。分享給大家供大家參考。具體分析如下：

這是一個php實現的簡單文法高亮顯示的函數，注意：這個函數設計的比較簡單，可能對某些文法不能高亮顯示，你可以自己擴充該函數的功能

function syntax_highlight($code){ // this matches --> "foobar" <-- $code = preg_replace(  '/"(.*?)"/U',   '"$1"', $code ); // hightlight functions and other structures like --> function foobar() <---  $code = preg_replace(  '/(\s)\b(.*?)((\b|\s)\()/U',   '$1$2$3',   $code ); // Match comments (like /* */):  $code = preg_replace(  '/(\/\/)(.+)\s/',   '$0',   $code ); $code = preg_replace(  '/(\/\*.*?\*\/)/s',   '$0',   $code ); // hightlight braces: $code = preg_replace('/(\(|\[|\{|\}|\]|\)|\->)/', '$1', $code); // hightlight variables $foobar $code = preg_replace(  '/(\$[a-zA-Z0-9_]+)/', '$1', $code ); /* The \b in the pattern indicates a word boundary, so only the distinct ** word "web" is matched, and not a word partial like "webbing" or "cobweb"  */ // special words and functions $code = preg_replace(  '/\b(print|echo|new|function)\b/',   '$1', $code ); return $code;}/*example-start*//*** Create some example PHP code:*/$example_php_code = '// some code comment:$example = "foobar";print $_SERVER["REMOTE_ADDR"];$array = array(1, 2, 3, 4, 5);function example_function($str) { // reverse string echo strrev($obj);}print example_function("foo");/*** A multiple line comment*/print "Something: " . $example;';// output the formatted code:print '
';print syntax_highlight($example_php_code);print '
';/*example-end*/

希望本文所述對大家的php程式設計有所協助。

http://www.bkjia.com/PHPjc/990538.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/990538.htmlTechArticlephp實現簡單的文法高亮函數執行個體分析，高亮執行個體分析 本文執行個體講述了php實現簡單的文法高亮函數。分享給大家供大家參考。具體分析如下：...

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