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PHP Function array_intersect_ukey()
Syntax
array_intersect_ukey ( $array1, $array2 [, $array3..., callback $key_compare_func] );
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Definition and Usage
Returns an array containing all the values of array1 which have matching keys that are present in all the arguments.
Paramters
Parameter | Description |
array1 | Required. The first array is the array that the others will be compared with. |
array2 | Required. An array to be compared with the first array |
array3 | Optional. An array to be compared with the first array |
key_compare_func | Required. User defined call back function.
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Return Values
Returns FALSE if there is any error.
Example
Try out following example:
<?php
function key_compare_func($key1, $key2)
{
if ($key1 == $key2)
return 0;
else if ($key1 > $key2)
return 1;
else
return -1;
}
$array1 = array('blue'=>1, 'red'=>2, 'green'=>3, 'purple'=>4);
$array2 = array('green'=>5, 'blue'=>6, 'yellow'=>7, 'cyan'=>8);
$result = array_intersect_ukey($array1, $array2, "key_compare_func");
var_dump($result);
?>
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This will produce following result:
array(2) {
["blue"]=>
int(1)
["green"]=>
int(3)
}
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