unset() function is used to destroy a variable.
<?php
$var1 = 10;
unset($var1);
echo $var1;
?>
Output:
// Notice: Undefined variable: var1
unset() function is used to destroy a variable.
<?php
$var1 = 10;
unset($var1);
echo $var1;
?>
Output:
// Notice: Undefined variable: var1