How to remove newline characters from string in php

php method to remove newlines in strings: You can use the php system constant PHP_EOL combined with the str_replace() function to achieve this. Line breaks in PHP can be replaced with PHP_EOL. The str_replace() function is used to replace some characters in a string.

str_replace() function replaces some characters in a string (case-sensitive) and returns a string or array with the replacement value.

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Grammar:

str_replace(find,replace,string,count)

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Implementation code:

// 1)使用转义字符函数
<?php
$str = str_replace(array("/r/n", "/r", "/n"), &#39;&#39;, $str);
?>
// 2)使用正则表达式替换
<?php
$str = preg_replace(&#39;//s*/&#39;, &#39;&#39;, $str);
?>
// 3)使用PHP系统常量【推荐】
$str = str_replace(PHP_EOL, &#39;&#39;, $str);
?>

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