trim --
Strip whitespace (or other characters) from the beginning and end of a string
Syntax
string trim ( string str [, string charlist] )
This function returns a string with whitespace stripped from the
beginning and end of str.
Without the second parameter,
trim() will strip these characters:
" " (ASCII 32
(0x20)), an ordinary space.
"\t" (ASCII 9
(0x09)), a tab.
"\n" (ASCII 10
(0x0A)), a new line (line feed).
"\r" (ASCII 13
(0x0D)), a carriage return.
"\0" (ASCII 0
(0x00)), the NUL-byte.
"\x0B" (ASCII 11
(0x0B)), a vertical tab.
You can also specify the characters you want to strip, by means
of the charlist parameter.
Simply list all characters that you want to be stripped. With
.. you can specify a range of characters.
Example 1. Usage example of trim()
<?php
$text = "\t\tThese are a few words :) ... ";
echo trim($text); // "These are a few words :) ..." echo trim($text, " \t."); // "These are a few words :)"
// trim the ASCII control characters at the beginning and end of $binary // (from 0 to 31 inclusive) $clean = trim($binary, "\x00..\x1F");
?>
Note:
The optional charlist parameter was
added in PHP 4.1.0
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Php trim syntax tutorial
php tutorial guide and code design are for easy learning and programming. The code practice section provided at the top is for practising of this syntax. Use the code section up to practice your php programming online. Learning php is very easy, all you need is to use the examples on this site and practice them to perfect your skills.
