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PHP if Operators


Comparison Operators

If statements usually contain conditions that compare two values.

Example

Check if $t is equal to 14:

$t = 14;

if ($t == 14) {
  echo "Have a good day!";
}
Try it Yourself »

To compare two values, we need to use a comparison operator.

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

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

Logical Operators

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

Example

Check if $a is greater than $b, AND if $a is less than $c:

$a = 200;
$b = 33;
$c = 500;

if ($a > $b && $c < $a ) {
  echo "Both conditions are true";
}
Try it Yourself »

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

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

We can compare as many conditions as we like in one if statement:

Example

Check if $a is either 2, 3, 4, 5, 6, or 7:

$a = 5;

if ($a == 2 || $a == 3 || $a == 4 || $a == 5 || $a == 6 || $a == 7) {
  echo "$a is a number between 2 and 7";
}
Try it Yourself »

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