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<?php $tab = array(array(1, 2), array(1, -2), array(5, 3), array(5, -3)); var_dump(count($tab)); print_r($tab); $x = 2; unset($tab[$x]); print_r($tab);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 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, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
int(4) Array ( [0] => Array ( [0] => 1 [1] => 2 ) [1] => Array ( [0] => 1 [1] => -2 ) [2] => Array ( [0] => 5 [1] => 3 ) [3] => Array ( [0] => 5 [1] => -3 ) ) Array ( [0] => Array ( [0] => 1 [1] => 2 ) [1] => Array ( [0] => 1 [1] => -2 ) [3] => Array ( [0] => 5 [1] => -3 ) )

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