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<?php function _convertToCamelCase(array $matches) { return ucfirst($matches[1]); } $key = 'valami_underscored_cucc'; $keys = array( 'valami_underscored_cucc', 'valami_underscored_cucc', 'valami_underscored_cucc', 'valami_underscored_cucc', 'valami_underscored_cucc', 'valami_underscored_cucc', 'valami_underscored_cucc', 'valami_underscored_cucc', 'valami_underscored_cucc', 'valami_underscored_cucc', ); foreach ($keys as $key) { echo preg_replace_callback( '/_(\w)/', '_convertToCamelCase', $key); }
Output for git.master, git.master_jit, rfc.property-hooks
valamiUnderscoredCuccvalamiUnderscoredCuccvalamiUnderscoredCuccvalamiUnderscoredCuccvalamiUnderscoredCuccvalamiUnderscoredCuccvalamiUnderscoredCuccvalamiUnderscoredCuccvalamiUnderscoredCuccvalamiUnderscoredCucc

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