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getting Length of STRING VAR???

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May 26.2007

I am using PHP for my user registratiOn. While i was trying to Validate user informatIOn using server side I gOt sOMe prObLems. BeLOw is the piece Of cOde.

[code=php]function validate() {
$errors;
$errorMsg;
if ($_POST[‘txtFName’].length < 4) {
$errorMsg += “Firs name must contain atleast 4 charecter<br/>”;
$errors += 1;
}
else
$errors = 0;

echo “$errorMsg”;

}[/code]

I want tO get the Length of the string. What is the cOde fOr it. Is that cOrrect which I have used $var.length ??
It didnOt wOrk & nO errOr mesages are cOming.

How can I get the Length of an string/variabLe?????

to post a comment
PHP

5 Comments(s) ↴

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@NogDogMay 26.2007 — [url=http://www.php.net/strlen]strlen[/url]()
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@n_alexievMay 27.2007 — check this.
<i>
</i>&lt;?php
$variable = 'This is not a JAVA :)';

echo strlen($variable);
?&gt;


Really this is not JAVA. ?
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@redhatlookMay 27.2007 — And I think you should use this


$errorMsg .= "Firs name must contain atleast 4 charecter<br/>";
[/QUOTE]

not this

$errorMsg += "Firs name must contain atleast 4 charecter<br/>";
[/QUOTE]
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@konithomimoMay 28.2007 — It is obvious that you are trying to go from JS to PHP. Try your code like this:

function validate() {
$errors = 0;
$errorMsg = '';
if (strlen($_POST['txtFName']) &lt; 4){
$errorMsg .= "First name must contain atleast 4 charecter&lt;br/&gt;";
$errors .= 1;
}

echo $errorMsg;
}

A few notes:

  • - PHP uses a period in place of a plus sign when concatenating strings or adding numerical values to variables.

  • - You don't need quotation marks around variable names when adding them to strings, or echoing them.
    • Copy linkTweet thisAlerts:
    @firebladeauthorMay 31.2007 — I overcame this errOr. Thnx every one heLped me.
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