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1.1 misho 1: --TEST-- 2: callback function returns non modified value 3: --SKIPIF-- 4: <?php if (!extension_loaded("filter")) die("skip"); ?> 5: --FILE-- 6: <?php 7: function callback($var) { 8: return $var; 9: } 10: $var = "test"; 11: var_dump(filter_var($var, FILTER_CALLBACK, array('options'=>'callback'))); 12: ?> 13: --EXPECT-- 14: string(4) "test"