PHP trim () function examples, trim examples to explain _php tutorial

PHP trim () Function example explained, trim example explained

The PHP trim () function removes whitespace characters or other predefined characters on either side of the string, and this article introduces the usage and examples of the PHP trim () function to the code farmer, which is of interest to the code farmer.

Definition and usage

The trim () function removes white space characters or other predefined characters on either side of the string.

Related functions:

• LTrim ()-removes white space characters or other predefined characters to the left of the string
• RTrim ()-Remove whitespace characters or other predefined characters to the right of the string

Grammar

Trim (string,charlist)

Parameters	Description
String	Necessary. Specifies the string to check.
Charlist	Optional. Specifies which characters are removed from the string. If omitted, all of the following characters will be removed: "+"-NULL "\ T"-tab "\ n"-line break "\X0B"-Vertical tab "\ r"-Enter ""-Space

Technical details

return value:	Returns the modified string
PHP version:	4 +
Update log:	In PHP 4.1, the charlist parameter has been added.

Instance

To remove spaces on either side of a string:

 
  "; echo" using Trim: ". Trim ($STR);? >

Run online

The HTML output of the above code is as follows (see source code):

Do not use Trim:  
Using Trim:hello world!

The browser output of the above code is as follows:

Use Trim:hello world! without using Trim:hello world!

Original address: http://www.manongjc.com/article/827.html

Related reading:

The PHP trim () function removes white space characters or other predefined characters on either side of the string

The PHP RTrim () function removes white space characters or other predefined characters to the right of the string

The PHP trim () function removes white space characters or other predefined characters on either side of the string

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