You are looking for the continue
statement.
From the docs:
continue
is used within looping structures to skip the rest of the current loop iteration and continue execution at the condition evaluation and then the beginning of the next iteration.
(See http://www.php.net/manual/en/control-structures.continue.php)
example:
<?php
while ( ... ) {
if ($foo = 'bar') {
// skip to the next iteration
continue;
}
}