How to remove spaces around values ​​in php

In PHP, you can use the trim() function to remove spaces around a value. This function is used to remove whitespace characters or other predefined characters on both sides of a string. The syntax is "trim(string,charlist) ".

The operating environment of this tutorial: windows10 system, PHP7.1 version, DELL G3 computer

How to remove the spaces around the numerical value in php

trim() function removes whitespace characters or other predefined characters on both sides of a string.

Related functions:

• ltrim() - Removes whitespace characters or other predefined characters on the left side of a string.

• rtrim() - Removes whitespace characters or other predefined characters on the right side of a string.

Syntax

trim(string,charlist)

Parameter Description

string Required. Specifies the string to check.

charlist Optional. Specifies which characters are removed from a string. If this parameter is omitted, all the following characters are removed:

• "\0" - NULL

• "\t" - tab character

• "\n" - Line feed

• "\x0B" - Vertical tab character

• "\r" - Enter

• " " - Space

The example is as follows:

<?php
$str = " 123456789 ";
var_dump($str);
echo "<br>";
var_dump(trim($str));
?>

Output result:

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