static Keyword in PHP ~ System Help Line

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static Keyword in PHP

Posted by https://systemhelpline.blogspot.com/ On 11:54 PM PHP

Normally, when a function is completed/executed, all of its variables are deleted. However, sometimes we want a local variable NOT to be deleted. We need it for a further job.
To do this, use the static keyword when you first declare the variable:

Example

<!DOCTYPE html>
<html>
<body>

<?php
function myTest() {
     static $x = 0;
     echo $x;
     $x++;
}

myTest();
echo "<br>";
myTest();
echo "<br>";
myTest();
?>

</body>
</html>

-------------------------------

OUTPUT

0
1
2

---------------------- ------

Then, each time the function is called, that variable will still have the information it contained from the last time the function was called.

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Anonymous

April 12, 2022 at 4:10 PM ×

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