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<?php $array = [ ['a'], ['b'], ['c'], ['d'], ]; var_export( array_map('reset', $array) );
Output for rfc.property-hooks, git.master_jit, git.master
Warning: reset(): Argument #1 ($array) must be passed by reference, value given in /in/Z7PUVL on line 11 Warning: reset(): Argument #1 ($array) must be passed by reference, value given in /in/Z7PUVL on line 11 Warning: reset(): Argument #1 ($array) must be passed by reference, value given in /in/Z7PUVL on line 11 Warning: reset(): Argument #1 ($array) must be passed by reference, value given in /in/Z7PUVL on line 11 array ( 0 => 'a', 1 => 'b', 2 => 'c', 3 => 'd', )

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