PHP array_diff() ফাংশন
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দুই আইন্দ্রণের কী-মানকে তুলনা করুন এবং মিনাস কোটা ফিরিয়ে দিন
<?php
$a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("e"=>"red","f"=>"green","g"=>"blue");
$result=array_diff($a1,$a2);
print_r($result);
?>
Definition and Usage
The array_diff() function returns an array of the difference set of two arrays. This array includes all the keys in the compared arrays, but not in any other parameter arrays.
The key names remain unchanged in the returned array.
Syntax
array_diff(array1,array2,array3...);
| Parameter | Description |
|---|---|
| array1 | Required. The first array to compare with other arrays. |
| array2 | Required. The array to compare with the first array. |
| array3,... | Optional. Other arrays to compare with the first array. |
Tips and Notes
Tip:You can use one or any number of arrays to compare with the first array.
Note:Only values are used for comparison.
Technical Details
| Return Value: | Returns the difference set array, which includes all the keys in the compared arrays (array1in, but not in any other parameter array (array2 or array3 etc.) keys. |
| PHP Version: | 4.0.1+ |
More Examples
Example 1
Compare the values of three arrays and return the difference set:
<?php
$a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("e"=>"red","f"=>"black","g"=>"purple");
$a3=array("a"=>"red","b"=>"black","h"=>"yellow");
$result=array_diff($a1,$a2,$a3);
print_r($result);
?>
