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<?php $_arr = array('test1', 'test2', 'test3'); $_string = 'TestWalk'; print "<pre>"; print_r(array_map(function($_arr) { return 'TestWalk' . $_arr; }, $_arr)); print_r(array_walk($_arr, function(&$item1, $key, $prefix) { return $prefix . $_arr; }), $_string);
Output for git.master, git.master_jit, rfc.property-hooks
<pre>Array ( [0] => TestWalktest1 [1] => TestWalktest2 [2] => TestWalktest3 ) Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 2 passed and exactly 3 expected in /in/36ThB:6 Stack trace: #0 [internal function]: {closure}('test1', 0) #1 /in/36ThB(6): array_walk(Array, Object(Closure)) #2 {main} thrown in /in/36ThB on line 6
Process exited with code 255.

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