‘AND’ vs ‘&&’ operators in PHP

The difference is the precedence when we compare AND with && operator. The precedence of AND operator is lower than the operator = when the evaluation is performed, therefore even if both the operators do the same work, the result is different.

Example

Let us first see an example of the AND operator−

 Live Demo

<?php    $val1 = 55;    $val2 = 65;    if ($val1 == 55 and $val2 == 65)       echo "Result = True";    else       echo "Result = False"; ?>

Output

This will produce the following output−

Result = True

Example

Let us now see an example of the && operator−

 Live Demo

<?php    $val1 = 110;    $val2 = 110;    if ($val1 == 110 && $val2 == 110)       echo "Result = True";    else       echo "Result = False"; ?>

Output

This will produce the following output:

Result = True

Example

Let us now see the difference in a single example −

 Live Demo

<?php    $bool = TRUE and FALSE;    echo ($bool ? 'true' : 'false'), "
";    $bool = TRUE && FALSE;    echo ($bool ? 'true' : 'false'); ?>

Output

This will produce the following output−

true false