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A simple syntax highlighting function implemented in PHP. Note: This function is relatively simple in design and may not be able to highlight certain syntaxes. You can expand the function of this function yourself
- function syntax_highlight($code ){
-
- // this matches --> "foobar" <--
- $code = preg_replace(
- '/"(.*?)"/U',
- '"$1"', $code
- );
-
- // highlight 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
- );
-
- // highlight braces:
- $code = preg_replace('/((|[|{|}|]|)|->)/', '$1
- // highlight 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: " . $example;';
-
-
- // output the formatted code:
- print '
';</li>
<li>print syntax_highlight($example_php_code);</li>
<li>print ' ';
-
- /*example-end*/
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