How to remove full-width spaces in php

How to remove full-width spaces in php: First create a PHP sample file; then use the "function myTrim($str){...}" method to remove full-width spaces.

## The operating environment of this article: Windows 7 system, PHP version 7.1 , Dell G3 computer.

How to remove full-width spaces in php?

php common methods for removing empty characters and spaces, full-width spaces, line breaks, etc. in strings

• Function to remove spaces from strings
  • Filter spaces, full-width spaces, line breaks
  • Use regular preg_replace function

Function to remove string spaces

trim() – Removes null characters from both ends of the string

ltrim() – Removes null characters from the front of the string
rtrim() – Removes null characters from the end of the string
chop() – Same as rtrim( ).

<?php
$text = " www.qipa250.com ";
$leftTrimmed = ltrim($text);
$rightTrimmed = rtrim($text);
$bothTrimmed = trim($text);
print("leftTrimmed = ($leftTrimmed)");
echo "<hr>";
print("rightTrimmed = ($rightTrimmed)");
echo "<hr>";
print("bothTrimmed = ($bothTrimmed)");
echo "<hr>";
?>

Output results

Filter spaces, full-width spaces, line breaks

function myTrim($str)
{
    $search = array(" ","　","\n","\r","\t");
    $replace = array("","","","","");
    return str_replace($search, $replace, $str);
}

echo '当前字符串内容：'.$str = 'www.qipa250.com
QIPA250 奇葩天地网 qipa250.com';

echo "<hr>";
echo &#39;过滤后的字符串内容：&#39;.myTrim($str);

echo "<hr>";

The results are as follows:

Use the regular preg_replace function

echo preg_replace('# #', '', 'ab     ab');
//输出 "abab"

Recommended study: "

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