PHP file

PHP File
PHP has powerful file handling function to manage file in a server.Some of these function require some special setting in php.ini and some available by default.

Function in File
write file
read file
open the file

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substr

substr() function returns the part of string
Syntax
substr(string,start,length)
Example

<?php // returns the part of string echo substr("hello india",6); echo substr("hello india",6,5); ?>

Output
india
india

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