PHP if Operators
Posted 2024-05-17 07:45:46
0
4K
Comparison Operators
If
statements usually contain conditions that compare two values.
ExampleGet your own PHP Server
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 && $a < $c ) {
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 »Cerca
Categorie
- Art
- Causes
- Crafts
- Dance
- Drinks
- Film
- Fitness
- Food
- Giochi
- Gardening
- Health
- Home
- Literature
- Music
- Networking
- Altre informazioni
- Party
- Religion
- Shopping
- Sports
- Theater
- Wellness
Leggi tutto
PHP Magic Constants
PHP Predefined Constants
PHP has nine predefined constants that change value depending on where...
PHP Continue
The continue statement can be used to jump out of the current iteration of a loop, and...
PHP Indexed Arrays
PHP Indexed Arrays
In indexed arrays each item has an index number.
By default, the first item...
PHP - Slicing Strings
Slicing
You can return a range of characters by using the substr() function.
Specify...
PHP Strings
A string is a sequence of characters, like "Hello world!".
Strings
Strings in PHP are...