PHP substr_compare() Function

The substr_compare() function is used to compares two strings from a specified start position to specified end position.This function is binary-safe and optionally case-sensitive.

	Syntax

substr_compare(string1,string2,startpos,length,case)

Parameters

String1 - (Required) Specify the first string to compare.
String2 - (Required) Specify the second string to compare.
Startpos - (Required) Specify where to start comparing in string1 and string2. -it provides the start position for comparison.
length - (Required) Specify how much of string1 to compare
case - (Required) specify the parameter boolean value that specify whether or not to perform a case-sensitive compare:
FALSE -Case-sensitive(Default value)
TRUE - Case-insensitive

Example

<?php
    echo substr_compare("Good Morning","Good Morning",0);
?>

Output

Example

<?php
    echo substr_compare("morning","or",1,2)."<br>";
    echo substr_compare("good","od",2,3)."<br>";
    echo substr_compare("morning","OR",1,3,TRUE)."<br>";
    echo substr_compare("good","og",1,3)."<br>";
?>

Output

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