PHP array_intersect_assoc() Function
 Complete PHP Array Reference
Definition and Usage
The array_intersect_assoc() function compares two or more arrays,
and returns an array with the keys and values from the first array, only if they are present in all of the other arrays.
Syntax
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array_intersect_assoc(array1,array2,array3...)
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| Parameter |
Description |
| array1 |
Required. The first array is the array that the others will be compared with |
| array2 |
Required. An array to be compared with the first array |
| array3 |
Optional. An array to be compared with the first array |
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 1
<?php
$a1=array(0=>"Cat",1=>"Dog",2=>"Horse");
$a2=array(3=>"Horse",1=>"Dog",0=>"Cat");
print_r(array_intersect_assoc($a1,$a2));
?>
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The output of the code above will be:
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Array ( [0] => Cat [1] => Dog )
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Example 2
<?php
$a1=array(0=>"Cat",1=>"Dog",2=>"Horse");
$a2=array(3=>"Horse",1=>"Dog",5=>"Fish");
$a3=array(6=>"Cow",1=>"Dog",8=>"Fish");
print_r(array_intersect_assoc($a1,$a2,$a3));
?>
|
The output of the code above will be:
Complete PHP Array Reference
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