PHP implements a simple syntax highlighting function

A PHP implementation of a simple syntax highlighting function, Note: This function design is relatively simple, may not highlight some of the syntax, you can expand the function function Syntax_highlight ($code) { This matches--"Foobar" <-- $code = Preg_replace ( '/"(.*?)" /U ', ' $', $code ); Hightlight functions and other structures--and function foobar () <--- $code = Preg_replace ( '/(\s) \b (. *?) (\b|\s) \ ()/U ', "$$", $code ); Match Comments (like/* */): $code = Preg_replace ( '/(\/\/) (. +) \s/', '$ A ', $code ); $code = Preg_replace ( '/(\/\*.*?\*\/)/s ', '$ A ', $code ); Hightlight Braces: $code = Preg_replace ('/(\ (|\[|\{|\}|\]|\) |\->)/', '$ ', $code); Hightlight variables $foobar $code = Preg_replace ( '/(\$[a-za-z0-9_]+)/', '$ ', $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 $code = Preg_replace ( '/\b (print|echo|new|function) \b/', '$ $ ', $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*/ Copy Code

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