PHP array_intersect() Function
 Complete PHP Array Reference
Definition and Usage
The array_intersect() function compares two or more arrays,
and returns an array with the keys and values from the first array, only if the value is present in all of the other arrays.
Syntax
array_intersect(array1,array2,array3...)
|
| 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: Only the value is used in the comparison.
Example
<?php
$a1=array(0=>"Cat",1=>"Dog",2=>"Horse");
$a2=array(3=>"Horse",4=>"Dog",5=>"Fish");
print_r(array_intersect($a1,$a2));
?>
|
The output of the code above will be:
Array ( [1] => Dog [2] => Horse )
|
Complete PHP Array Reference
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