Definition
The substr() function returns a part of a string.
Syntax
substr(string, start, length)
Parameters
| Parameter | Description |
|---|---|
string |
Required. Specifies the string to return a part of. |
start |
Required. Specifies where to start in the string:A positive number - Start at a specified position in the stringA negative number - Start at a specified position from the end of the string0 - Start at the first character in string. |
length |
Optional. Specifies the length of the returned string. Default is to the end of the string. A positive number - The length to be returned from the start parameterNegative number - The length to be returned from the end of the string If the length parameter is 0, null, or false - it return an empty string. |
Example
<?php
echo substr("Welcome to PHP!", 8);