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POencoding a PHP variable with quotes and line breaks to be passed to a Javascript function (and then reverse the encoding)
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copied!<p>Say you have a PHP variable called $description with the following value (that contains quotes and line breaks):</p> <pre><code>Tromp L'oeil Sheath Dress You will certainly "trick the eye" of many in this gorgeous illusion. Add it to your fall wardrobe before it disappears. </code></pre> <p>You want to pass the contents of this variable into a Javascript function that writes that value into an INPUT of type text.</p> <p>How would you do this? I tried this:</p> <pre><code>$description = htmlspecialchars ( $product->description, ENT_QUOTES ); </code></pre> <p>However, I get a JS error. I also tried this:</p> <pre><code>$description = rawurlencode ( $product->description ); </code></pre> <p>This encodes the value like so:</p> <pre><code>Michael%20Kors%0A%0ATromp%20L%27oeil%20Sheath%20Dress%0A%0AYou%20will%20certainly%20%22trick%20the%20ey%22%20of%20many%20in%20this%20gorgeous%20illusion.%20Add%20it%20to%20your%20fall%20wardrobe%20before%20it%20disappears.%0A%0AAvailable%20in%20Black%2FNude </code></pre> <p>This value can be passed as a JS variable, but I don't know of a JS function that will cleanly reverse a PHP rawurlencode.</p> <p>Is there a matching pair of functions that I could use to encode a variable in PHP to allow it to be passed into a JS function -- and then reverse the encoding in JS so that I get the original value of the PHP variable?</p> <p>EDIT: To clarify the question and reply to comments, here is some test code:</p> <pre><code><?php $str =<<<EOT Tromp L'oeil Sheath Dress You will certainly "trick the eye" of many in this gorgeous illusion. Add it to your fall wardrobe before it disappears. EOT; echo 'here is the string: <pre>' . $str . '</pre>'; ?> <script type="text/javascript"> <?php // this does not work with JS as i get an unterminated string literal if i just use addslashes in the following commented-out line // echo 'alert(\'' . addslashes($str) . '\');'; // this works with JS (the alert activates) but how do i un-rawurlencode in JS? // echo 'alert(\'' . rawurlencode($str) . '\');'; // this does not work with JS, because of the line breaks echo 'alert(\'' . htmlspecialchars ($str, ENT_QUOTES) . '\');'; ?> </script> </code></pre>

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