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<?php function camelCase($string) { preg_replace_callback('/(?:^|_)(.?)/',"strtoupper('$1')",$string); return $string; } echo camelCase('common/home'); echo camelCase('common_home');
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: preg_replace_callback(): Argument #2 ($callback) must be a valid callback, function "strtoupper('$1')" not found or invalid function name in /in/icYNO:4 Stack trace: #0 /in/icYNO(4): preg_replace_callback('/(?:^|_)(.?)/', 'strtoupper('$1'...', 'common/home') #1 /in/icYNO(8): camelCase('common/home') #2 {main} thrown in /in/icYNO on line 4
Process exited with code 255.

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