PHP: strncmp() function
Description
The strncmp() function compare two strings of the first n characters.
Note : The comparison is case sensitive.
Version:
(PHP 4 and above)
Syntax:
strncmp(string1, string2, no_of_characters)
Parameters:
Name | Description | Required / Optional |
Type |
---|---|---|---|
string1 | The first string. | Required | String |
string2 | The second string. | Required | String |
no_of_characters | Specified the number of characters from each string to be used in the comparison. | Required | Integer |
Return value:
< 0 if string1 < string2.
> 0 if string1 > string2.
0 if string1 = string2.
Value Type: Integer.
Example:
<?php
echo strncmp('Hello John...', 'Hello Anirban....', 6);
?>
Output :
0
View the example in the browser
See also
Previous: strncasecmp
Next: strrchr
PHP: Tips of the Day
In PHP, there are two versions of logical AND and OR operators.
Operator | True if |
---|---|
$a and $b | Both $a and $b are true |
$a && $b | Both $a and $b are true |
$a or $b | Either $a or $b is true |
$a || $b | Either $a or $b is true |
Note that the && and || opererators have higher precedence than and and or. See table below:
Evaluation | Result of $e | Evaluated as |
---|---|---|
$e = false || true | True | $e = (false || true) |
$e = false or true | False | ($e = false) or true |
Because of this it's safer to use && and || instead of and and or.
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