The ltrim Function
The ltrim function removes whitespace from the beginning
of a string. It can also remove other
characters if they are specified as the second parameter.
Syntax
phpltrim(string $string, string $characters = " \t\n\r\0\x0B"): string
Example
Let's remove the whitespace from the left:
php<?php
echo ltrim(' abcde ');
?>
Code execution result:
php'abcde '
Example
Let's remove the slashes from the left:
php<?php
echo ltrim('/abcde/', '/');
?>
Code execution result:
php'abcde/'
Example
Let's remove slashes and dots from the left:
php<?php
echo ltrim('/abcde', '/.');
?>
Code execution result:
php'abcde'
Example
The function removes any number of the specified characters if they are on the edge:
php<?php
echo ltrim('../../abcde', '/.');
?>
Code execution result:
php'abcde'
Example
You can specify a range of characters using
two dots '..'. For example, let's specify
that we want to remove characters from 'a'
to 'd':
php<?php
echo ltrim('abcde', 'a..d');
?>
Code execution result:
php'e'