php實現簡單的文法高亮函數執行個體分析_PHP教程

php實現簡單的文法高亮函數執行個體分析

　　這篇文章主要介紹了php實現簡單的文法高亮函數,執行個體分析了php通過Regex實現文法高亮的相關技巧,需要的朋友可以參考下

　　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

　　?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62

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/990983.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/990983.htmlTechArticlephp實現簡單的文法高亮函數執行個體分析 這篇文章主要介紹了php實現簡單的文法高亮函數,執行個體分析了php通過Regex實現文法高亮的相關技...

