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<?php function convert_case($name) { return implode( '_', array_map( 'strtolower', preg_split('/(([A-Z]+)[^A-Z]*)/', $name, null, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY) ) ); } echo json_encode(array_map("convert_case", array("FooBar", "FooBAR")), JSON_PRETTY_PRINT);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/GOA46 on line 9 Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/GOA46 on line 9 [ "foo_f_bar_b", "foo_f_bar_bar" ]

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