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PHP : If Else

2017-11-16

if

if (condition) {
    //code to be executed if condition is true;
}

if else

if (condition) {
    code to be executed if condition is true;
} else {
    code to be executed if condition is false;
}

elseif

if (condition) {
    code to be executed if this condition is true;
} elseif (condition) {
    code to be executed if this condition is true;
} else {
    code to be executed if all conditions are false;
}

Embedded html if statement

<?php if($condition) : ?>
    This will only display if $condition is true
<?php elseif($anotherCondition) : ?>
    more html
<?php else : ?>
    even more html
<?php endif; ?>

switch

switch (n) {
    case label1:
        code to be executed if n=label1;
        break;
    case label2:
        code to be executed if n=label2;
        break;
    case label3:
        code to be executed if n=label3;
        break;
    ...
    default:
        code to be executed if n is different from all labels;
}