PHP SplFixedArray offsetUnset () Function
Last Updated :
23 Jun, 2023
The SplFixedArray::offsetUnset() function is an inbuilt function in PHP which is used to unset the value of the requested index.
Syntax:
void SplFixedArray::offsetUnset( $index )
Parameters: This function accepts a single parameter $index which specifies the required index whose values need to unset.
Return Value: This function does not return any value.
Below programs illustrate the SplFixedArray::offsetUnset() function in PHP:
Program 1:
<?php
$gfg = new SplFixedArray(6);
$gfg [0] = 1;
$gfg [1] = 5;
$gfg [2] = 10;
var_dump( $gfg ->offsetGet(2));
$gfg ->offsetUnset (2);
var_dump( $gfg ->offsetGet(2));
?>
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Program 2:
<?php
$gfg = new SplFixedArray(6);
$gfg [0] = 1;
$gfg [1] = 5;
$gfg [2] = 1;
$gfg [3] = 11;
$gfg [4] = 15;
$gfg [5] = 17;
$i = 0;
while ( $i < 6) {
var_dump( $gfg ->offsetGet( $i ));
$gfg ->offsetUnset ( $i );
var_dump( $gfg ->offsetGet( $i ));
$i ++;
}
?>
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Output:
int(1)
NULL
int(5)
NULL
int(1)
NULL
int(11)
NULL
int(15)
NULL
int(17)
NULL
Reference: https://www.php.net/manual/en/splfixedarray.offsetunset.php
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