else
else
(PHP 4, PHP 5, PHP 7)
Often you'd want to execute a statement if a certain condition is met, and a different statement if the condition is not met. This is what else is for. else extends an if statement to execute a statement in case the expression in the if statement evaluates to FALSE. For example, the following code would display a is greater than b if $a is greater than $b, and a is NOT greater than b otherwise:
<?php
if ($a > $b) {
echo "a is greater than b";
} else {
echo "a is NOT greater than b";
}
?> FALSE, and if there were any elseif expressions - only if they evaluated to FALSE as well (see elseif).
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https://secure.php.net/manual/en/control-structures.else.php
