Detailed explanation of deleting newlines when reading files line by line in PHP

This time I will bring you a detailed explanation of the operation of deleting newline characters when reading files in PHP. Precautions for deleting newline characters when reading files in PHP. What are they? The following is a practical case. Let’s take a look. Example, PHP reads the file line by line and removes the newline character "\n":

//第一种
$content=str_replace("\n","",$content);echo $content;
//或者：
$content=str_replace（array("\n","\r"),"",$content);
//第二种：
$content=preg_replace("/\s/","",$content);
echo $content;
//第三种：
$content=trim($content);

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to php Chinese Other related articles online!

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