PHP uses Trim function to remove left and right spaces and special character instances, trim special characters _php tutorial

PHP uses the Trim function to remove left and right spaces and special character instances, trim special characters

The example in this paper describes how PHP uses the Trim function to remove left and right spaces and special characters. Share to everyone for your reference, as follows:

the trim () function in PHP is defined as follows :

Trim (string,charlist)

The parameters are described as follows:

string is required. 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

The sample code is as follows:

<?php $str = "\r\r (: @_@  Scripting House offers a large number of excellent script and material downloads  @_@:)   "; echo Trim ($STR), echo "<br/>", echo Trim ($str, " \r\r (::) ");? >

The results of the operation are as follows:

(: @_@ provides a large number of excellent scripts and materials to download @_@:) @_@ to provide a lot of excellent script and material download @_@

I hope this article is helpful to you in PHP programming.

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