Conversion of quotation marks in wp_add_inline_script() results in invalid JavaScript

[dboulet]

A string containing JavaScript which is passed to wp_add_inline_script() is sometimes rendered invalid when strings within it contain quotation marks. As an example:

<?php
wp_add_inline_script( 'jquery-ui-datepicker', '"Aujourd\'hui";' );

will output the following:

<script>
"Aujourd"hui";
</script>

Interestingly, reversing the quotation marks results in the same output:

<?php
wp_add_inline_script( 'jquery-ui-datepicker', "'Aujourd\"hui';" );

also gives:

<script>
"Aujourd"hui";
</script>

Either way, valid JavaScript is passed in, and invalid scripts are spit out. Anyone know what is going on?

[swissspidy]

A string containing JavaScript which is passed to wp_add_inline_script() is sometimes rendered invalid when strings within it contain quotation marks.

I cannot seem to reproduce this. See attached test in 37877.diff​. The output is <script type='text/javascript'>"Aujourd'hui";</script> as expected.

Can you give us some more info? Does the test work on your system?

Interestingly, reversing the quotation marks results in the same output:

The quotation marks you use for the string are irrelevant. PHP will only see what's inside, i.e. 'Aujourd\"hui'; in your second example.

[swissspidy]

Closing after no feedback for over 4 months and no clear indication of a bug here. Feel free to reopen if necessary, ideally with a unit test showing the bug.