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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) ) ); } $samples = array( 'FooBar', 'FooBAR', 'FOObar', ); print_r(array_map("convert_case", $samples));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/gZ1FL on line 9 Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/gZ1FL on line 9 Deprecated: preg_split(): Passing null to parameter #3 ($limit) of type int is deprecated in /in/gZ1FL on line 9 Array ( [0] => foo_f_bar_b [1] => foo_f_bar_bar [2] => foobar_foo )
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Array ( [0] => foo_f_bar_b [1] => foo_f_bar_bar [2] => foobar_foo )
preferences:
220.1 ms | 405 KiB | 312 Q