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run code in 150+ php & hhvm versions
Bugs & Features
<?php function ConvertToAPICase($str) { return preg_replace_callback('/^([a-z]{1})|(-([\w]{1}))/g', function($matches) { return strtoupper($matches[1]); }, $str); } function ConvertToJSCase($str) { $str = preg_replace_callback('/([A-Z]+)/g', function($matches) { return '-' . strtolower($matches[1]); }, $str); // remove first dash return preg_replace('/^-/', '', $str); } echo ConvertToJSCase('NicamAllAges'); echo ' - '; echo ConvertToAPICase('nicam-age-6'); echo ' - '; echo ConvertToJSCase('NicamAge6'); echo ' - '; echo ConvertToJSCase('nicamAge12'); echo ' - '; echo ConvertToJSCase('NicamAA');
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_replace_callback(): Unknown modifier 'g' in /in/nkFao on line 12 - Warning: preg_replace_callback(): Unknown modifier 'g' in /in/nkFao on line 6 - Warning: preg_replace_callback(): Unknown modifier 'g' in /in/nkFao on line 12 - Warning: preg_replace_callback(): Unknown modifier 'g' in /in/nkFao on line 12 - Warning: preg_replace_callback(): Unknown modifier 'g' in /in/nkFao on line 12
Output for hhvm-3.10.0 - 3.12.0
Warning: Unknown modifier 'g': [/([A-Z]+)/g] in /in/nkFao on line 12 - Warning: Unknown modifier 'g': [/^([a-z]{1})|(-([\w]{1}))/g] in /in/nkFao on line 6 - Warning: Unknown modifier 'g': [/([A-Z]+)/g] in /in/nkFao on line 12 - Warning: Unknown modifier 'g': [/([A-Z]+)/g] in /in/nkFao on line 12 - Warning: Unknown modifier 'g': [/([A-Z]+)/g] in /in/nkFao on line 12
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/nkFao on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/nkFao on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/nkFao on line 4
Process exited with code 255.