Escape a string full of " and ' in PHP

Question

I need to escape a string that has a lot of " and '. The string is a binary from a database. I have this:

$String64 = '<a data-String64="'.$binary64.'">Link</a>';

So the $binary64 has some text like target:"29", width=100'height=200...

So my problem is that the "' are closing the data-String64 before it can output the entire variable. I have tried addslashs(), but nothing good.

How can I escape this?

This is what I have tried:

$String64 = "<a data-string64='${binary64}'><b><i class='fa fa-eye'></i></b></a>";
$String64 = "<a data-string64='{$binary64}'><b><i class='fa fa-eye'></i></b></a>";
$String64 = "<a data-string64=\'${binary64}\'><b><i class='fa fa-eye'></i></b></a>";
$String64 = "<a data-string64=\'$binary64\'><b><i class='fa fa-eye'></i></b></a>";
$String64 = "<a data-string64=\"$binary64\"><b><i class=\"fa fa-eye\"></i></b></a>";

Do you really need those `'` and `"`s any problem if you remove them ? — Vinay, Mar 24 '20 at 16:16
like i said, it is a binary from my DB. So i need it because the binary is a PDF file that ill render in an iframe. — Alexis Garcia, Mar 24 '20 at 16:19
lol i cant var_dump all of it, its a binary of 40kb. i can post some part v $ � � &�� v $ ��cO�� W��@N��#Iq�Ie�_��c�Ժ��B|Γ��f��ƐF�/9��y�Ҙ��z�)�L�Tk��%�T��0SJ��#��N��0rl��N�L�%�Ƿc�.��y�=�^n��0��Ù Mp�{o�;��_�wf.�%^�x��dK\�*N��d�I�Tm)B�MM:[oa,C�6aFVrY��O�&�%@DL>6�Q��u��j*��Ot��B�T� — Alexis Garcia, Mar 24 '20 at 16:23
I see , as long as you use it like binary it should be fine (like write to a pdf file) why you want to display it as text? — Vinay, Mar 24 '20 at 16:35
i needed that in a data- to get it by JS, but i guess ill do it by ajax and forget this method — Alexis Garcia, Mar 24 '20 at 16:36
Yes I've done that in ajax just make the request as binary and browser will treat it as such. Things is HTML is supposed to be a TEXT-only document therefore can't handle the binary content that's the reason we use EXTERNAL Font files to render custom fonts/emojis — Vinay, Mar 24 '20 at 16:38

Aksen P · Answer 1 · 2020-03-24T16:36:33.583

0

You need to make next:

$String64 = '<a data-String64="'.base64_encode( $binary64 ).'">Link</a>';

or

$String64 = '<a data-String64="'. base64_encode($binary64->load()) .'">Link</a>';

Documentation of base64_encode()

For your tag try:

echo '<embed 
      style="position:absolute; height:100%; width:100%;" 
      type="application/pdf" 
      src="data:application/pdf;base64,' . base64_encode($binary64->load()) . '"></embed>';

edited Mar 24 '20 at 16:36

answered Mar 24 '20 at 16:12

Aksen P

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lol thats not it. you did a simple variable ````$var = ''TTTT;```` the problem is that i have multiple " and ' inside my var – Alexis Garcia Mar 24 '20 at 16:14
still not my case. Like i said, i have multiple " and ' at same time. Try to make your var like this: ````var = 'TT "TT'T '; you will see what is my problem – Alexis Garcia Mar 24 '20 at 16:16
tried both, wont work. First still doenst escape and second gives an php error. What you are doing there i did that in my javascript. ````var htmlText = ''; ```` – Alexis Garcia Mar 24 '20 at 16:30
mysql i guess ill do this in another way. ill get it by ajax directly in my JS and forget this data-. Guess it will be better for performance and everything. – Alexis Garcia Mar 24 '20 at 16:38
@AlexisGarcia, as you wish, also you can check [this](https://stackoverflow.com/questions/7793009/how-to-retrieve-images-from-mysql-database-and-display-in-an-html-tag) – Aksen P Mar 24 '20 at 16:39

Escape a string full of " and ' in PHP

1 Answers1