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<?php $abc = array( 'a' => array('Aron','M'), 'b' => array('Abbey','D'), 'c' => array('Alice','P')); function cmp($a, $b) { $a=array_pop($a); $b=array_pop($b); $res = strcmp($a,$b); if ( $res == 0) { return 0; } return ($res < 0) ? -1 : 1; } usort($abc, "cmp"); foreach ($a as $key => $value) { echo "$key: $value\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $a in /in/EMWAT on line 19 Warning: foreach() argument must be of type array|object, null given in /in/EMWAT on line 19

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