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Is there a textarea character limit in PHP

Posted on 2014-03-26
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Last Modified: 2014-03-27
Hello,

I have created a form in PHP that includes a textarea.  The form information is being sent via e-mail.  Is there a character limit in textarea?

I am using PHP with Pear on a Linux server.

Please advise.

Have a great day,

Don
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Question by:GEMCC
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9 Comments
 
LVL 36

Expert Comment

by:gr8gonzo
ID: 39956324
I'm sure there is a browser-based limit, but it's not going to be an issue for emailed content. You will have problems sending the email long before you run into a problem with running out of room on the textarea.

If it's basic form data, you shouldn't need to really worry about limits. If anything, you may want to add the maxlength attribute to the tag and specify your own limit so that someone doesn't put in 10 megabytes of text that then gets emailed to you and sucks up your bandwidth.
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LVL 31

Expert Comment

by:Marco Gasi
ID: 39956335
In Php you can only truncate the textarea value after the user has submitted it to the server script. But this is not a great idea, because it lets the user believe to have sent a long text whereas a part of it is deleted on the server side.

It's better to ue javascript to set the limit of chars a user can type within the textarea. Give to your text area an id (for instance, <textarea id='mymesage'>) and then use JQuery:

$('#mymessage').on('keypress', function(){
    var limit = 255;
    if($(this).val().length > limit){
        $(this).val($(this).val().substr(0, limit));
    }
});

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by:Paul Jackson
ID: 39956344
No, you would normally use JavaScript to check that the users were not entering more characters than you want them to.
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Expert Comment

by:Marco Gasi
ID: 39956345
Lol. Unless gr8gonzo knew something I ignore, this is a perfect example of how we can interpret  in two opposite ways the same question if the asker isn't precise and descriptive enough!
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Expert Comment

by:gr8gonzo
ID: 39956363
@Marco - true, although I would suggest that he use the maxlength attribute over Javascript if he wants to enforce a limit. I would also recommend truncating the data on the server-side, as well (just in case a malicious user posts data directly instead of using the form).
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Accepted Solution

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Ray Paseur earned 2000 total points
ID: 39956378
Practically speaking, no, there is no textarea limit.  The maximum length of the POST-method request is probably somewhere near 2 billion bytes.  If you type 60 WPM, it will take you about 12 years to exceed the maximum length.
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Author Comment

by:GEMCC
ID: 39956407
Never mind.  I found the issue.  The script I was using cut the message off.

Thanks for your responses.

Have a great day,

Don
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Author Closing Comment

by:GEMCC
ID: 39957796
Answered my question.
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Expert Comment

by:Ray Paseur
ID: 39958616
:-)  Thanks for the points and thanks for using EE, ~Ray
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