PHP ltrim() Function
Topic: PHP String ReferencePrev|Next
Description
The ltrim() function strips whitespace and other characters from the beginning of a string.
The following table summarizes the technical details of this function.
| Return Value: | Returns the trimmed string. |
|---|---|
| Version: | PHP 4+ |
Syntax
The basic syntax of the ltrim() function is given with:
The following example shows the ltrim() function in action.
Example
Run this code »<?php
// Sample string
$str = " Hello World! ";
// Stripping whitespace from the beginning
echo ltrim($str);
?>Parameters
The ltrim() function accepts the following parameters.
| Parameter | Description |
|---|---|
| string | Required. Specifies the string to be trimmed. |
| strip_characters |
Optional. Specifies the list of all characters that you want to be stripped. If this parameter is not specified,
|
More Examples
Here're some more examples showing how ltrim() function actually works:
In the following example only spaces and tab character from the beginning of the string will be removed. The whitespace characters at the end and inside the string will remain intact.
Example
Run this code »<?php
// Sample string
$str = " \tHello\n World!\n ";
// Trimming the leading whitespace
echo ltrim($str);
?>In the following example only space, plus, and minus from left end of the string will be removed.
Example
Run this code »<?php
// Sample string
$str = " ++--\tHello World!++-- ";
// Removing characters from the left side
echo ltrim($str, " +-");
?>
