PHP strcoll() Function (original) (raw)
Last Updated : 21 Jun, 2023
The strcoll() is an inbuilt function in PHP and is used to compare two strings. This function is case-sensitive which points that capital and small cases will be treated differently, during a comparison. This function compares two strings and tells us that whether the first string is greater or smaller than the second string or equals to the second string.
Syntax:
strcoll($string1, $string2)
**Parameters:**The function accepts two mandatory string parameters which are described below.
- $string1: This parameter refers to the first string to be used in the comparison.
- $string2: This parameter refers to the second string to be used in the comparison.
Return Value: The function returns a random integer value depending on the condition of match, which is given by:
- Returns 0 if the strings are equal.
- Returns a negative value (<0), if string1islesserthanstring1 is lesser than string1islesserthanstring2.
- Returns a positive value (>0) if string2islesserthanstring2 is lesser than string2islesserthanstring1.
Examples:
Input : string1="geeksforgeeks"string1 = "geeks for geeks" string1="geeksforgeeks"string2="geeks for geeks" Output : 0
Input : string1="striver"string1 = "striver" string1="striver"string2="raj" Output : 1
Below programs illustrate the use of strcoll() function:
Program 1: The below program demonstrates the return value when two equal strings are passed
<?php
`` $string1 = "geeks for geeks" ;
`` $string2 = "geeks for geeks" ;
`` echo strcoll ( $string1 , $string2 );
?>
Output:
0
Program 2: The below program demonstrates the return value when string1 is greater than string2
<?php
`` $string1 = "striver" ;
`` $string2 = "raj" ;
`` echo strcoll ( $string1 , $string2 );
?>
Output:
1
Program 3: The below program demonstrates the return value when string2 is greater than string1
<?php
`` $string1 = "CPP" ;
`` $string2 = "PHP" ;
`` echo strcoll ( $string1 , $string2 );
?>
Output:
-13