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PHP ltrim() Function

PHP String Reference 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

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

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>

PHP String Reference Complete PHP String Reference
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