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<?php $string = 'ab.cd.ef.gh.ij.kl.mn.op.qr'; $split = array_map( array_chunk(explode('.', $string), 2), function($value) { return implode('.', $value); } ); var_dump($split);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, array callback must have exactly two members in /in/pI7Rv:5 Stack trace: #0 /in/pI7Rv(5): array_map(Array, Object(Closure)) #1 {main} thrown in /in/pI7Rv on line 5
Process exited with code 255.
Output for 8.1.0 - 8.1.28
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, array must have exactly two members in /in/pI7Rv:9 Stack trace: #0 /in/pI7Rv(9): array_map(Array, Object(Closure)) #1 {main} thrown in /in/pI7Rv on line 9
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback, array must have exactly two members in /in/pI7Rv:9 Stack trace: #0 /in/pI7Rv(9): array_map(Array, Object(Closure)) #1 {main} thrown in /in/pI7Rv on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_map() expects parameter 1 to be a valid callback, array must have exactly two members in /in/pI7Rv on line 9 NULL
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: array_map() expects parameter 1 to be a valid callback, array must have exactly two members in /in/pI7Rv on line 10 NULL
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