PHP uses Trim function to remove left and right spaces and special character instances

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 $str = "\r\r (: @_@  site provides a large number of excellent script and material download  @_@:)   "; echo trim ($STR); echo "
"; Echo Trim ($str, "\r\r (::)");? >

The results of the operation are as follows:

(: @_@ site provides a large number of excellent script and material download @_@:) @_@ This site provides a large number of excellent script and material download @_@

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

The above describes the use of the trim function of PHP to remove the left and right white space and special character instances, including aspects of the content, I hope to be interested in PHP tutorial friends helpful.

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