Loops: for, while, foreach, do-while

Iterate through data with all PHP loop types.

For Loop

for (\$i = 0; \$i < 5; \$i++) {
    echo \$i;
}

\$i = 0;
while (\$i < 5) {
    echo \$i++;
}

\$i = 0;
do {
    echo \$i++;
} while (\$i < 5);

\$items = ["a", "b", "c"];
foreach (\$items as \$item) {
    echo \$item;
}
foreach (\$items as \$key => \$value) {
    echo "\$key: \$value";
}

Use break N to break out of N levels. Use continue to skip to next iteration.

<?php
$colors = ['red', 'green', 'blue'];
foreach ($colors as $i => $c) {
    echo "$i: $c\n";
}