PHP ltrim() Function
 Complete PHP String Reference
Definition and Usage
The ltrim() function will remove whitespaces or other predefined character
from the left side of a string.
Syntax
| 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
|
Example 1
<html>
<body>
<?php
$str = " Hello World!";
echo "Without ltrim: " . $str;
echo "<br />";
echo "With ltrim: " . ltrim($str);
?>
<body>
<html>
|
The browser output of the code above will be:
Without ltrim: Hello World!
With ltrim: Hello World!
|
If you select "View source" in the browser window, you will see the following
HTML:
<html>
<body>
Without ltrim: Hello World!<br />With ltrim: Hello World!
</body>
</html>
|
Example 2
<?php
$str = "\r\nHello World!";
echo "Without ltrim: " . $str;
echo "<br />";
echo "With ltrim: " . ltrim($str);
?>
|
The browser output of the code above will be:
Without ltrim: Hello World!
With ltrim: Hello World!
|
If you select "View source" in the browser window, you will see the following
HTML:
<html>
<body>
Without ltrim:
Hello World!<br />With ltrim: Hello World!
</body>
</html>
|
Complete PHP String Reference
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