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PHP

Posted by Simon Latham
Simon Latham
Courses Plus Student 6,261 Points

Code Challenge: Escaping Out

I keep getting this error message when I use htmlspecialchar():

PHP Fatal error: Call to undefined function htmlspecialchar() in views_listing_edit.php on line 13

Line 13 refers to:

input id="name" name="name" value="<?php echo htmlspecialchar($listing_name); ?>"

What am I doing wrong? I can't seem to figure it out, which means I can't move on to the rest of the course.

HELP!

Joakim Andersson
Joakim Andersson
Courses Plus Student 2,714 Points

<b>htmlspecialchars();</b> ?

Joakim Andersson
Joakim Andersson
Courses Plus Student 2,714 Points

<?php $new = htmlspecialchars("<a href='test'>Test</a>", ENT_QUOTES); echo $new; // <a href='test'>Test</a> ?>

http://php.net/manual/en/function.htmlspecialchars.php

3 Answers

Randy Hoyt
STAFF
Randy Hoyt
Treehouse Guest Teacher
Randy Hoyt
Randy Hoyt
Treehouse Guest Teacher

Yeah, it looks like you are missing an s at the end of the function name. Instead of this ...

htmlspecialchar(

... it should be ...

htmlspecialchars(

Did that solve the problem?

Simon Latham
PLUS
Simon Latham
Courses Plus Student 6,261 Points
Simon Latham
Simon Latham
Courses Plus Student 6,261 Points

Doh! Of course.

Thanks, Randy and Joakim.

Simon Latham
PLUS
Simon Latham
Courses Plus Student 6,261 Points
Simon Latham
Simon Latham
Courses Plus Student 6,261 Points

By the way, Randy... any plans for a PHP Deep Dive in the near future?

Randy Hoyt
Randy Hoyt
Treehouse Guest Teacher
Randy Hoyt
Randy Hoyt
Treehouse Guest Teacher

I'm working on a PHP & MySQL course right now, moving all the products for the Shirts 4 Mike site from our products array to a database. A PHP Foundations / Deep Dive course would probably make sense after that, but we don't have our PHP content planned that far out yet.

Simon Latham
Simon Latham
Courses Plus Student 6,261 Points

Cool... I look forward to that.

I'm having a little trouble in getting my head around the rewrite url section... the rest I followed quite well, to the point where I want to learn more (which is why I thought of a Deep Dive).

So I think I'll mosey on back to the beginning of Enhancing a Simple PHP Application... and go a little slower, this time.

Keep up the good work.

Simon

Randy Hoyt
Randy Hoyt
Treehouse Guest Teacher
Randy Hoyt
Randy Hoyt
Treehouse Guest Teacher

Thanks! Rewrite Rules can definitely be tricky. They work at a different level of the web stack: they work at the web server level, giving Apache instructions for what PHP code to execute in order to respond to web requests. I would recommend going back through that badge again. :-)

Alex Heil
Alex Heil
53,547 Points

great news Randy Hoyt ,

I really enjoyed watching your videos - great job! - and looking forward to what's coming next - also agree with Simon Latham that a deep dive would be a very nice addition and pretty useful ;)