Syntax to create a dynamic string in PHP

Question

I am going cross-eyed trying to figure out my syntax error here.

I have a table that I create dynamically. The user can click on one cell in a row to get an alert with notes in it.

The problem is that my quote marks are incorrect no matter what I do. I'm obviously not seeing something.

This PHP code

"<td onclick='showNotes()' ></td>";

Gets me in my HTML code upon rendering

<td onclick="showNotes()"></td>

This looks good and executes my jQuery no problem. So far so good.

========================================================

This PHP code (where $col contains the notes to be displayed)

"<td onclick='showNotes(" . $col . ")' ></td>";

gets me this in my HTML

<td onclick="showNotes(myNewNotes)"></td>

The only problem here is that myNewNotes is a string and needs to have quotes around it, or else I get an error that it is not defined. OK, moving along.

========================================================

So now I try this PHP code

"<td onclick='showNotes(" . "'" . $col . "'" . "')' ></td>";

Which gets me this in the HTML, which is crap.

<td onclick="showNotes(" myNewNotes'')'></td>

=========================================================

WHAT is going on?

aynber · Accepted Answer · 2016-11-22 18:53:15Z

4

You can escape quotes within your string, which will get you what you need:

"<td onclick='showNotes(\"$col\")' ></td>";

answered Nov 22, 2016 at 18:53

aynber

23.2k9 gold badges57 silver badges69 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

B. Krafft Over a year ago

YES! Thank you so much.

ScaisEdge · Accepted Answer · 2016-11-22 18:52:57Z

0

Normally you should use escape \ this way

  "<td onclick='showNotes(\'" .  $col ."\');' ></td>";

answered Nov 22, 2016 at 18:52

ScaisEdge

133k10 gold badges98 silver badges111 bronze badges

Comments

happymacarts · Accepted Answer · 2016-11-22 18:54:24Z

0

How about this

    echo "td onclick='showNotes(" .'"'. $col .'"'. ")' ></td>";

answered Nov 22, 2016 at 18:54

happymacarts

2,5942 gold badges29 silver badges36 bronze badges

Collectives™ on Stack Overflow

Syntax to create a dynamic string in PHP

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

1 Comment

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related