These 5 functions for obtaining the intersection have 5 corresponding functions for obtaining the difference set. I am the link. array_intersect($arr1, $arr2); //Get the intersection of the same key value in the array array_intersect_key($arr1, $arr2); //Get the intersection of arrays with the same key name array_intersect_assoc(same as above); //Get the intersection of the key values of the array with the same key name array_intersect_uassoc(same as above, 'custom callback function'); //Use a custom callback function to obtain the intersection of the key values of the array with the same key name array_intersect_ukey (same as above, custom callback function); //Use a custom callback function to obtain the intersection of data with the same key name 1 $arr1 = array('r' => 'red','u' => 'blue', 'g' => 'green', 'b' => 'black'); 2 $arr2 = array('r' => 'red
1. Commonly used array functions in php (3) (functions to obtain array intersection array_intersect(), array_intersect_key( ), array_intersect_assoc(), array_intersect_uassoc(), array_intersect_ukey())
Introduction: Common array functions in php (3) (functions to obtain array intersection array_intersect() , array_intersect_key(), array_intersect_assoc(), array_intersect_uassoc(), array_intersect_ukey())
Introduction: php-Arrays function-array_intersect_ukey-Use callback function to compare key names to calculate the intersection of arrays array_intersect_ukey() Use callback function to compare key names. To calculate the intersection of arrays [Function] This function will return an array that contains everything in array1 but not in any other
Introduction: php-Arrays function-array_intersect_ukey-Use callback function to compare key names to calculate the intersection of arrays array_intersect_ukey(. ) Use the callback function to compare key names to calculate the intersection of arrays [Function] This function will return an array that contains everything in array1 but not in any other
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