为每一行添加后缀[PHP和textarea HTML]

Question

问候是否可以使用PHP为textarea的每一行添加后缀？ 我知道我们可以从textarea获取文本到Variables然后呢？ 如何添加enter-（换行）作为变量？

Answer 1

这有效：

<form method="GET">
<textarea name="inputFromTextArea">This is line 1
This is line 2
...
This is line 4</textarea>
<input type="submit">
</form>

<?php 

/* Convert text with lines to an array (\r\n = Carriage return & Newline on Windows machines*/
$lines = explode("\n", $_GET['inputFromTextArea']);

/* debug information to show the contents of $lines */
echo "<pre>";
print_r($lines);
echo "</pre>";

/* Loop over all lines and manipulate each line */
foreach($lines as $lineNr => $line){
    $lines[$lineNr] = trim($line,"\r") . " a suffix here "; // remove possible Carriage returns & concatenate stuff
}

/* debug information to show the contents of $lines */
echo "<pre>";
print_r($lines);
echo "</pre>";

?>

在此处阅读有关回车和换行的更多信息：\\ r \\ n = \\ n和\\ r \\ n之间的差异？