Php implements simple syntax highlighting function instance analysis, highlighting instance Analysis _ PHP Tutorial-php Tutorial

Php implements simple syntax highlighting function instance analysis and highlighting instance analysis. Php implements simple syntax highlighting function instance analysis. highlighting example analysis this article describes how php implements simple syntax highlighting functions. Share it with you for your reference. The specific analysis is as follows: php implements simple syntax highlighting function instance analysis and highlighting instance analysis.

This example describes how php implements simple syntax highlighting functions. Share it with you for your reference. The specific analysis is as follows:

This is a simple syntax highlighted function implemented by php. note: This function is easy to design and may not be highlighted for some syntaxes. you can expand the function by yourself.

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*/

I hope this article will help you with php programming.

Examples in this article describes how php implements simple syntax highlighting functions. Share it with you for your reference. The specific analysis is as follows :...