The following PHP page
<?php
$a = "World";
function say() {
echo $a;
}
?>
Hello, <?php say(); ?>
fails with:
Undefined variable: a in test.php on line 5
Could someone explain me why, and what is the best way to fix this?
you have to define variable as global inside the function
<?php
$a = "World";
function say() {
global $a;
echo $a;
}
say();
?>
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