w3resource

PHP: trim() function

Description

The trim() function is used to remove the white spaces and other predefined characters from the left and right sides of a string.

Version:

(PHP 4 and above)

Syntax:

trim(string_name, char_list)

Parameters:

Name Description Required /
Optional		 Type
string_name The string to be trimmed. Required String
char_list Specifies the character(s) to remove. Without this remove the following " " an ordinary space.
"\0" - the NUL-byte.
"\t" - tab.
"\n" - line feed.
"\x0B" - a vertical tab.
"\r" - a carriage return.		 Optional String

Return value:

The trimmed string.

Value Type: String.

Pictorial Presentation

string_trim

Example - 1: 

<?php
$string_name=' Welcome to w3resource.com ';
$new_string=trim($string_name);
echo $new_string;
?>

Output:

Welcome to w3resource.com

View the example in the browser

Example - 2 : 

<?php
$string_name="	Welcome to w3resource.com";
$new_string=trim($string_name,"\t");
//echo $new_string;
var_dump($new_string);
?>

Output :

string(25) "Welcome to w3resource.com"

View the example in the browser

See also

PHP Function Reference

Previous: substr
Next: ucfirst



PHP: Tips of the Day

PHP: How to write to the console in PHP?

Firefox

On Firefox you can use an extension called FirePHP which enables the logging and dumping of information from your PHP applications to the console. This is an addon to the awesome web development extension Firebug.

  • http://www.studytrails.com/blog/using-firephp-in-firefox-to-debug-php/

Chrome

However if you are using Chrome there is a PHP debugging tool called Chrome Logger or webug (webug has problems with the order of logs).

More recently Clockwork is in active development which extends the Developer Tools by adding a new panel to provide useful debugging and profiling information. It provides out of the box support for Laravel 4 and Slim 2 and support can be added via its extensible API.

Using Xdebug

A better way to debug your PHP would be via Xdebug. Most browsers provide helper extensions to help you pass the required cookie/query string to initialize the debugging process.

  • Chrome - Xdebug Helper
  • Firefox - The easiest Xdebug
  • Opera - Xdebug
  • Safari - Xdebug Toggler

Ref : https://bit.ly/3ck9rFg