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PHP Quiz PHP CertificatePHP strcmp() Function
Example
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 the strncmp() function, with the difference that you can specify the number of characters from each string to be used in the comparison with strncmp().
Syntax
strcmp(string1,string2)
| Parameter | 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 will not output the same):
<?php
echo strcmp("Hello","Hello");
echo "<br>";
echo strcmp("Hello","hELLo");
?>
echo strcmp("Hello","Hello");
echo "<br>";
echo strcmp("Hello","hELLo");
?>
Run example »
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 »
Complete PHP String Reference
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