PHP strcmp()Functions
Examples
Compare two strings (case-sensitive):
<?php
echo strcmp("Hello world!","Hello world!");
?>
echo strcmp("Hello world!","Hello world!");
?>
Run example »
Definition and Usage
The strcmp() function compares two strings.
Note:The strcmp() function is binary-safe and case-sensitive.
Tip:This function is similar to thestrncmp()function, except that with strncmp() you can specify the number of characters to use for comparison from each string.
Syntax
strcmp(string1,string2)
| Parameters | Description |
|---|---|
| string1 | Required. Specifies the first string to compare. |
| string2 | Required. Specifies the second string to compare. |
Technical Details
| Return value: | This function returns:
|
|---|---|
| PHP Version: | 4+ |
More Examples
Example 1
Compare two strings (case-sensitive, Hello and hELLo have different output):
<?php
echo strcmp("Hello","Hello");
echo "<br>";
echo strcmp("Hello","hELLo");
?>
echo strcmp("Hello","Hello");
echo "<br>";
echo strcmp("Hello","hELLo");
?>
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Example 2
Different return values:
<?php
echo strcmp("Hello world!","Hello world!"); // the two strings are equal
echo strcmp("Hello world!","Hello"); // string1 is greater than string2
echo strcmp("Hello world!","Hello world! Hello!"); // string1 is less than string2
?>
echo strcmp("Hello world!","Hello world!"); // the two strings are equal
echo strcmp("Hello world!","Hello"); // string1 is greater than string2
echo strcmp("Hello world!","Hello world! Hello!"); // string1 is less than string2
?>
Run example »
PHP String Reference Manual Other Extensions