## Substr() Function in PHP

Last Updated On Thursday 9th Sep 2021

## PHP substr

• This function is used to return a part of string.
• Its Very Simple Syntax substr()

### PHP String Contains substring

	substr(string,start,length);



It has few Parameters

• First one is String – Specify the Input String.
• Second one is a start – It is the required Parameter.
• Third one is length – Optional Parameter. Specify the end of the string
	<?php
echo substr("Hello Folks", 5); // Folks

?>



Starts With 0 – Remove all five characters from the start and return the remaining. ( includes whitespace )

	<?php
echo substr("Hello Folks", 5,4); // Fol

?>



In Above Example returns only three characters, but the length is 4 because it includes the whitespace.

	<?php
echo substr("Hello Folks", 5,-1); // Folk

?>


• In Above Code, The Negative Number is going to return the last index
• I Specify -1 it’s going to return from the end of the string
	<?php
echo substr("Hello Folks", 5,0); //

?>


• In Above Example, that is going not to return anything
• We Choose the length as 0

Use Case

We can use this anywhere in the PHP, Where you Want to subtract some text from the element