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<?php $arr1 = array( array('categoryid' => '31', 'itemname' => 'Math - Quiz #1'), array('categoryid' => '33', 'itemname' => 'Math - Quiz #2'), array('categoryid' => '35', 'itemname' => 'Math - Quiz #3'), array('categoryid' => '31', 'itemname' => 'Math - Quiz #4') ); $arr2 = array('categoryid' => '31'); $intersect = array_uintersect($arr1, $arr2, 'compareDeepValue'); print_r($intersect); function compareDeepValue($val1, $val2) { return strcmp($val1['categoryid'], $val2['categoryid']); }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/0otZH:16 Stack trace: #0 [internal function]: compareDeepValue(Array, '31') #1 /in/0otZH(11): array_uintersect(Array, Array, 'compareDeepValu...') #2 {main} thrown in /in/0otZH on line 16
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Illegal string offset 'categoryid' in /in/0otZH on line 16 Array ( )
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Array ( )
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: array_uintersect() in /in/0otZH on line 11
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: array_uintersect() in /in/0otZH on line 11
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: array_uintersect() in /in/0otZH on line 11

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