What is the array intersection function in php that only compares values?

The array intersection function in PHP that only compares values is "array_intersect()"; this function is used to compare the key values of two (or more) arrays, the syntax is "array_intersect(array1, array2. ..)" will return an intersection array containing values taken from the compared array (array 1).

The operating environment of this tutorial: Windows 7 system, PHP version 7.1, DELL G3 computer

The array intersection function in php that only compares values isarray_intersect().

array_intersect() function is used to compare two (or more) arrays. When comparing, only the key values of the arrays are compared and the intersection of the arrays is returned.

array_intersect(array1,array2,array3...);

array1,array2,array3...is the array list that needs to be compared

• Returns an intersection array, which includes all the arrays being compared (array1), Also the value in any other parameter array (array2 or array3 etc.).

• Simply put, the returned intersection value is obtained from the compared array (array1).

"red","b"=>"green","c"=>"blue","d"=>"yellow"); $a2=array("e"=>"red","f"=>"black","g"=>"purple"); $a3=array("a"=>"red","b"=>"black","h"=>"yellow"); var_dump($a1); var_dump($a2); var_dump($a3); $result=array_intersect($a1,$a2,$a3); echo "交集数组："; var_dump($result); ?>

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