3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function _convertToCamelCase(array $matches) { return ucfirst($matches[1]); } $key = 'valami_underscored_cucc'; $keys = array( 'valami' ); foreach ($keys as $key) { echo preg_replace_callback( '/_(\w)/', '_convertToCamelCase', $key); }
based on bcUKZ
Output for 5.1.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
valami
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/matgd on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting ')' in /in/matgd on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_ARRAY, expecting ')' in /in/matgd on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/matgd on line 3
Process exited with code 255.