PHP if Operators

Comparison Operators

• If statements usually contain conditions that compare two values.

Example

<!DOCTYPE html>

<html>
<body>

<?php
$t = 14;

if ($t == 14) {
  echo "Welcome to Codelines!";
}
?> 

</body>
</html>

Output

Welcome to Codelines!

Here are the PHP comparison operators to use in if statements:

Operator	Name	Result
==	Equal	Returns true if the values are equal
===	Identical	Returns true if the values and data types are identical
!=	Not equal	Returns true if the values are not equal
<>	Not equal	Returns true if the values are not equal
!==	Not identical	Returns true if the values or data types are not identica
>	Greater than	Returns true if the first value is greater than the second value
<	Less than	Returns true if the first value is less than the second value
>=	Greater than or equal to	Returns true if the first value is greater than, or equal to, the second value
<=	Less than or equal to	Returns true if the first value is less than, or equal to, the second value

• Logical Operators

To check more than one condition, we can use logical operators, like the && operator:

Example

<!DOCTYPE html>

<html>
<body>

<?php
$a = 200;
$b = 33;
$c = 500;

if ($a > $b && $a < $c ) {
  echo "Both conditions are true";
}
 ?>
 
</body>
</html>

Output

Both conditions are true

Here are the PHP logical operators to use in if statements:

Operator	Name	Result
and	And	True if both conditions are true
&&	And	True if both conditions are true
or	Or	True if either condition is true
\|\|	Or	True if either condition is true
xor	Xor	True if either condition is true, but not both
!	Not	True if condition is not true