PHP strcmp Function

What is strcmp Function and how it is used in string?

Explanation

In PHP, this function is used to compare two strings and is case sensitive.

Syntax:


strcmp(string1,string2)

In the above syntax "string1", "string2" specifies the strings to be compared, the function returns "0" if both strings are equal, returns a value ">0" if "string1" is greater than "string2", returns a value "<0" if "string1" is less than "string2".

Example :


<?php
$s1="Hello World";
$s2="hello world";
echo strcmp($s1,$s2);
echo "<br>";
if(strcmp($s1,$s2)==0)
{
echo "Two strings are matching";
}
else
{
echo "Two strings are different";
}
?>
Result :

-1
Two strings are different

In the above string example if we have used strcasecmp(), it will give a result "0",ie., both strings are equal, but when used strcmp() as its case sensitive it gives a result "-1",ie., "string1" is less than "string2".

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