Execute javascript function from php

Question

I'm executing some javascript functions from php using the following:

echo '<script language="javascript" type="text/javascript">window.top.window.updateLog("fornecedores","'.$errorMsg.'");</script>';

The problem is that sometimes $errorMsg has some " what make it syntax incorrect. What should I do?

Thanks

Please stop doing this! This would be a perfect use case for Ajax. Any future developer working on your code will thank you forever if you do. — Undefined, Jun 19 '13 at 16:32

score 1 · Answer 1 · answered Jun 19 '13 at 16:32

I would do this way:

echo '<script language="javascript" type="text/javascript">window.top.window.updateLog("fornecedores",'.json_encode($errorMsg).');</script>';

I made research about inserting PHP values to JS code.
As result - I found that using json_encode() is most perfect way.
For many reasons.

score -1 · Answer 2 · answered Jun 19 '13 at 16:30

you should use the heredoc syntax in order to echo other scripts as strings correctly:

echo <<<ADF

<script language="javascript" type="text/javascript">

window.top.window.updateLog('fornecedores','$errorMsg')

</script>

ADF;

2 Answers2