The example in this article describes how PHP gets the value of textarea and handles the method of carriage return line wrapping. Share to everyone for your reference. The implementation methods are as follows:
In general, in the HTML form textarea we press carriage return and newline are some ASCII or special character encoding, if not the conversion output text is not typesetting.
PHP Gets the textarea value is very simple textarea carriage return change behavior \ r \ n below See example
HTML code:
Copy Code code as follows:
<textarea name= "test" rows= "3″cols=" 20″id= "test" ></textarea>
PHP Code:
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$str =$_get[' test '];
echo $str. ' <br/> ';
$arr =explode ("\ n", $str);
Print_r ($arr);
echo Count ($arr). ' <br/> ';//return number
$str 1=nl2br ($STR);//Enter for line change
echo $str 1;
All code:
Copy Code code as follows:
<title></title>
<body>
<form action= "" >
<textarea name= "Test" ></textarea>
<input type= "Submit"/>
</form>
<?php
$str =$_get[' test '];
echo $str. ' <br/> ';
$arr =explode ("\ n", $str);
Print_r ($arr);
echo Count ($arr). ' <br/> ';//return number
$str 1=nl2br ($STR);//carriage return replaced by a newline default function
echo $str 1;
?>
</body>
Let's take a look at some of DZ forum examples. Not much to say, directly on the code:
Copy Code code as follows:
$names = Preg_split ('/\r\n/', $_post[' textarea '));
foreach ($names as $name) {
Todo something Eg:echo $name;
}
The value is very simple, then the assignment, in the TEXTAREA output line break is not so simple
Copy Code code as follows:
$vals = Get_from_mydb ();
$tmp = ';
foreach ($vals as $val) {
$tmp. = $val. ';
}
"and" "What does that mean?"
I believe we all see, in fact, textarea in the return to become a character in the "\ n", so the PHP processing textarea in the return is actually processing characters in the "\ n".
I hope this article will help you with your PHP program design.
