[RESOLVED] Outputting JavaScript with PHP

**donatello** · 07-03-2011 03:17 AM

Having a small problem with quotes and single quotes - I think. I am using PHP to generate a JavaScript email hider and it's ALMOST working... half the URL is being output and it appears to hang on a quote or single quote...

This generator will enable users to scramble their email addresses (to hide it from SpamBots) using PHP.

You can see the test script here:
http://privacypolicyonline.com/email-hider2.php

Here is the code:

PHP Code:

PHP Code:


<html> 

<head> 

<title>Email Hider</title> 

</head> 

<body> 

Enter Your Email Address and click 'create':<br /> 

<form action="email-hider2.php" method="post"> 

<input type="text" name="email"> 

<input type="submit" value="Create!"> 

</form> 





<?php 



$string = $_POST['email']; 



$ent = array( 

'a'=>'97,', 

'b'=>'98,', 

'c'=>'99,', 

'd'=>'100,', 

'e'=>'101,', 

'f'=>'102,', 

'g'=>'103,', 

'h'=>'104,', 

'i'=>'105,', 

'j'=>'106,', 

'k'=>'107,', 

'l'=>'108,', 

'm'=>'109,', 

'n'=>'110,', 

'o'=>'111,', 

'p'=>'112,', 

'q'=>'113,', 

'r'=>'114,', 

's'=>'115,', 

't'=>'116,', 

'u'=>'117,', 

'v'=>'118,', 

'w'=>'119,', 

'x'=>'120,', 

'y'=>'121,', 

'z'=>'122,', 

'A'=>'65,', 

'B'=>'66,', 

'C'=>'67,', 

'D'=>'68,', 

'E'=>'69,', 

'F'=>'70,', 

'G'=>'71,', 

'H'=>'72,', 

'I'=>'73,', 

'J'=>'74,', 

'K'=>'75,', 

'L'=>'76,', 

'M'=>'77,', 

'N'=>'78,', 

'O'=>'79,', 

'P'=>'80,', 

'Q'=>'81,', 

'R'=>'82,', 

'S'=>'83,', 

'T'=>'84,', 

'U'=>'85,', 

'V'=>'86,', 

'W'=>'87,', 

'X'=>'88,', 

'Y'=>'89,', 

'Z'=>'90,', 

'0'=>'48,', 

'1'=>'49,', 

'2'=>'50,', 

'3'=>'51,', 

'4'=>'52,', 

'5'=>'53,', 

'6'=>'54,', 

'7'=>'55,', 

'8'=>'56,', 

'9'=>'57,', 

'@'=>'64,', 

'-'=>'45,', 

'.'=>'46,', 

'_'=>'95,' 

); 





$raw = strtr("$string", $ent); 

$raw = str_replace(',]', ']', $raw); 





////// THIS PART PUTS IT INTO A TEXTBOX FOR COPY PASTE ////// 

echo '<textarea rows="17" cols="100">'; 



echo '<script type="text/javascript">'; 

echo "\n"; 

echo '/*<![CDATA[*/'; 

echo "\n"; 

echo '/***********************************************'; 

echo "\n"; 

echo '* Tool from Privacy Policy Generator'; 

echo "\n"; 

echo '* URL: http://www.PrivacyPolicyOnline.com'; 

echo "\n"; 

echo '* **********************************************/'; 

echo "\n"; 

echo '<!-- Encrypt your email //-->'; 

echo "\n"; 

echo "var HiderArray=[$raw]\n"; 

echo "var ScrewedEmail='' //variable to contain encrypted email \n"; 

echo 'for (var i=0; i<HiderArray.length; i++)'; 

echo "\n"; 

echo ' ScrewedEmail+=String.fromCharCode(HiderArray[i])'; 

echo "\n"; 



echo "document.write('<a href=\"mailto:'+ScrewedEmail+'\">Contact Us</a>')\n"; 

echo "\n"; 



echo '/*]]>*/'; 

echo "\n"; 

echo '</script>'; 

echo '</textarea>'; 

echo '<br /><hr /><br />'; 





// THIS PART SHOULD BE A DEMO WITH A WORKING LINK // 

echo 'What it looks like:<br />'; 

echo '<script type="text/javascript">'; 

echo '/*<![CDATA[*/'; 

echo '/***********************************************'; 

echo '* Tool from Privacy Policy Generator'; 

echo '* URL:http://wwwPrivacyPolicyOnline.com'; 

echo '* **********************************************/'; 

echo '<!-- Encrypted version of: your email [at] **********.*** //-->'; 

echo "\n"; 

echo "var HiderArray=[$raw]\n"; 

echo "var ScrewedEmail='' //variable to contain encrypted email \n"; 

echo 'for (var i=0; i<HiderArray.length; i++)'; 

echo "\n"; 

echo ' ScrewedEmail+=String.fromCharCode(HiderArray[i])'; 

echo "\n"; 

echo "document.write('<a href=\"mailto:'"; 

echo "+ScrewedEmail+"; 

echo "'&quot;>Contact Us</a>')\n"; 

echo '/*]]>*/'; 

echo "\n"; 

echo '</script>'; 



?>

__________________

**NogDog** · 07-03-2011 08:25 AM

This...

PHP Code:


echo "'&quot;>Contact Us</a>')\n";

...should be...

PHP Code:


echo "'\">Contact Us</a>')\n";

PS: You could probably save yourself some grief by making use of the PHP HEREDOC syntax, instead of all those separate echo statements, plus then you don't have to do quite so much escaping of quotes.

PHP Code:


<?php

echo <<<EOD

<script type='text/javascript'>

alert("You can use double quotes and 'single quotes' and interpolate $variables.")

</script>

EOD;

**donatello** · 07-04-2011 11:26 AM

Thanks for that!

BTW - I resolved this just before loggin in...
Thanks for the help!

**donatello** · 07-06-2011 02:07 AM

Wow!

Thanks for that EOD tip... that is fantastic and has saved me a TON of time and headaches...

One question:

What is the difference between using

<<<EOD

and

<<<EOT

??????????????????

**astupidname** · 07-06-2011 04:13 AM

What is the difference between using

<<<EOD

and

<<<EOT

??????????????????

None really, could be:

Code:

 
$someString = <<<Supercalifragilisticexpialidocious
As long as the <b>ending</b>
is the same as the <b>beginning</b> tag name you chose,
as a tag name is essentially what you are supplying to the
opening and closing delimiters of the heredoc.
Supercalifragilisticexpialidocious;
echo $someString;

**NoasIT** · 07-06-2011 09:23 AM

the text on the line following the three less than symbols (<<<) becomes the terminating delimiter for that string block. It must be the first thing on the line in order to terminate the string, that text can be whatever you want it to be and shown in astupidname's post. This is called heredoc style syntax. Read more on it here -> http://www.php.net/manual/en/languag...syntax.heredoc

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Thanks nog dog!!!!

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