php unset array key
unset($dataArray['key']);destroy php variable
<?php
$first = 100;
$second = 200;
$third = $first + $second;
echo "Sum = ".$third;
// Destroy a variable with unset function
unset($third);
//after delete the variable call it again to test
echo "Sum = ".$third;
?>php unset
// Destroy a variable
<?php
unset ($var1, $var2.... )
?>php delete
<?php
$servername = "localhost";
$username = "username";
$password =
"password";
$dbname =
"myDB";
// Create connection
$conn =
new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// sql to delete a record
$sql
= "DELETE FROM MyGuests WHERE id=3";
if ($conn->query($sql) === TRUE) {
echo "Record
deleted successfully";
} else {
echo
"Error deleting record: " . $conn->error;
}
$conn->close();
?>unset php
//remove variable
unset($var1,$var2,$var3;
//remove array
unset($array['$key']);Copyright © 2021 Codeinu
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