PHP array_diff_assoc() Function

Complete PHP Array Reference

Definition and Usage

The array_diff_assoc() function compares two or more arrays, and returns an array with the keys and values from the first array, only if they are not present in any of the other arrays.

Syntax

array_diff_assoc(array1,array2,array3...)

Tips and Notes

Tip: You can compare the first array with one array, or as many as you like.

Note: Both the key and the value is used in the comparison.

Example

<?php
$a1=array(0=>"Cat",1=>"Dog";,2=>"Horse");
$a2=array(0=>"Rat",1=>"Horse";,2=>"Dog");
$a3=array(0=>"Horse",1=>"Dog",2=>"Cat");
print_r(array_diff_assoc($a1,$a2,$a3));
?> 

The output of the code above will be:

Array ( [0] => Cat [2] => Horse )

Complete PHP Array Reference

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