How to replace the carriage return character in php

How to replace the carriage return character in php: 1. Replace through the str_replace method; 2. Replace using the preg_replace method; 3. Replace through the "str_replace(PHP_EOL, '', $str);" statement. Can.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

Three ways to replace carriage return and line feed with PHP Method

A small line break actually has different implementations on different platforms. Why is this? The world is diverse!

Originally in the Unix world, /n was used to replace line breaks.

In order to reflect the difference, Windows uses /r/n,

What’s more interesting is that /r is used again in Mac.

Therefore, there are a lot of troubles when writing programs on different platforms, such as replacing newlines.

The first way

str_replace(array("/r", "/n", "/r/n"), "", $string);

The second way is to use regular expressions

$str = preg_replace('//s*/', '', $str);

The third way

I have to look at it again here One of PHP's defined variables

PHP_EOL represents the newline character of PHP. This variable will change according to the platform. Under Windows, it will be /r/ n, under Linux it is /n, under mac it is /r

$str = str_replace(PHP_EOL, '', $str);

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