Why array_diff() gives Array to string conversion error? array_diff报错!Array to string conversion err
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According to it:
php -r 'array_diff(array("a" => array("b" => 4)), array(1));'PHP Notice: Array to string conversion in Command line code on line 1PHP Stack trace:PHP 1. {main}() Command line code:0PHP 2. array_diff() Command line code:1
One of your arrays is multidimensional.
array_diff
only checks one dimension of a n-dimensional array. Of course you can check deeper dimensions by using array_diff($array1[0], $array2[0]);
就素说!array_diff这个玩意呢!它只对以为数组管用!嘿嘿!
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