PHP ltrim() Function

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# PHP ltrim() Function

PHP String Reference

## Example

Remove characters from the left side of a string:

<?php
$str = "Hello World!";
echo $str . "<br>";
echo ltrim($str,"Hello");
?>
Run example »

## Definition and Usage

The ltrim() function removes whitespace or other predefined characters from the left side of a string.

Related functions:

- rtrim() - Removes whitespace or other predefined characters from the right side of a string
- trim() - Removes whitespace or other predefined characters from both sides of a string

## Syntax

ltrim(string,charlist)

Parameter | Description
--- | ---
string | Required. Specifies the string to check

charlist

Optional. Specifies which characters to remove from the string. If omitted, all of the following characters are removed:

- "\0" - NULL
- "\t" - tab
- "\n" - new line
- "\x0B" - vertical tab
- "\r" - carriage return
- " " - ordinary white space

## Technical Details

Return Value: | Returns the modified string
PHP Version: | 4+
Changelog: | The charlist parameter was added in PHP 4.1

## More Examples

## Example 1

Remove whitespaces from the left side of a string:

<?php
$str = " Hello World!";
echo "Without ltrim: " . $str;
echo "<br>";
echo "With ltrim: " . ltrim($str);
?>

The HTML output of the code above will be (View Source):

<!DOCTYPE html>
<html>
<body>
Without ltrim: Hello World!<br>With ltrim: Hello World!
</body>
</html>

The browser output of the code above will be:

Without ltrim: Hello World!
With ltrim: Hello World!
Run example »

## Example 2

Remove newlines (\n) from the left side of a string:

<?php
$str = "\n\n\nHello World!";
echo "Without ltrim: " . $str;
echo "<br>";
echo "With ltrim: " . ltrim($str);
?>

The HTML output of the code above will be (View Source):

<!DOCTYPE html>
<html>
<body>
Without ltrim:
Hello World!<br>With ltrim: Hello World!
</body>
</html>

The browser output of the code above will be:

Without ltrim: Hello World!
With ltrim: Hello World!
Run example »

PHP String Reference

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