"ghosts" slashes, adding item to a json file? what do I do?

Question

This is my original json file

data.json (before)

[
{ "thumb": "../userfiles/img/min/m_1.jpg", "image": "../userfiles/img/1.jpg", "title": "Image 1", "folder": "Folder 1" },
{ "thumb": "../userfiles/img/min/m_2.jpg", "image": "../userfiles/img/2.jpg", "title": "Image 2", "folder": "Folder 1" },
{ "thumb": "../userfiles/img/min/m_3.jpg", "image": "../userfiles/img/3.jpg", "title": "Image 3", "folder": "Folder 1" },
{ "thumb": "../userfiles/img/min/m_4.jpg", "image": "../userfiles/img/4.jpg", "title": "Image 4", "folder": "Folder 1" },
{ "thumb": "../userfiles/img/min/m_5.jpg", "image": "../userfiles/img/5.jpg", "title": "Image 5", "folder": "Folder 1" }
]

This is my php file that adds an element to the file data.jon

add_json.php

<?
$dir_thumb  = '../userfiles/img/thumb/6_m.jpg';
$dir_img    = '../userfiles/img/6.jpg'; 
$title      = 'img_6';     
$tipo_image = 'news';

$json        = file_get_contents('data.json');
$data        = json_decode($json);

$data[]     = array(
             'thumb'=>  $dir_thumb,
             'image'=>  $dir_img,
             'title'=>  $title,
             'folder'=> $tipo_image         
        );
file_put_contents('data.json', json_encode($data));
?>

This is the resulting file data.json

data.json (after executing the file add_json.php)

[   
{"thumb":"..\/userfiles\/img\/min\/m_1.jpg","image":"..\/userfiles\/img\/1.jpg","title":"Image 1","folder":"Folder 1"},
{"thumb":"..\/userfiles\/img\/min\/m_2.jpg","image":"..\/userfiles\/img\/2.jpg","title":"Image 2","folder":"Folder 1"},
{"thumb":"..\/userfiles\/img\/min\/m_3.jpg","image":"..\/userfiles\/img\/3.jpg","title":"Image 3","folder":"Folder 1"},
{"thumb":"..\/userfiles\/img\/min\/m_4.jpg","image":"..\/userfiles\/img\/4.jpg","title":"Image 4","folder":"Folder 1"},
{"thumb":"..\/userfiles\/img\/min\/m_5.jpg","image":"..\/userfiles\/img\/5.jpg","title":"Image 5","folder":"Folder 1"},
{"thumb":"..\/userfiles\/img\/thumb\/6_m.jpg","image":"..\/userfiles\/img\/6.jpg","title":"img_6","folder":"news"}  
]

What I do to remove backslashes? Thanks for your help

That's just PHP overkill. Don't worry, the JSON is still valid, and the strings have **exactly** the same value they would have without the unnecessary backslashes. — T.J. Crowder, Nov 03 '13 at 17:00
Or `JSON_UNESCAPED_SLASHES` as mentioned in one of the other dozens of duplicates. — mario, Nov 03 '13 at 17:01

score 3 · Answer 1 · answered Nov 03 '13 at 17:01

3

You can prevent that with the JSON_UNESCAPED_SLASHES option to json_encode, see the documentation.

Note, though, that it's just PHP overkill. The JSON is still valid, and the strings have exactly the same sequence of characters in them that they would have without the unnecessary escape characters.

answered Nov 03 '13 at 17:01

T.J. Crowder

1,031,962
187
1,923
1,875

1

Why is this answer downvoted? Please explain. – Marcel Korpel Nov 03 '13 at 17:03
Thank you very much. I have two days with this problem "no problem" – Francisco José Segura Noya Nov 03 '13 at 17:32

score 1 · Answer 2 · answered Nov 03 '13 at 16:59

1

You don't need to remove those backslashes, they're just escaping characters.

After reading that JSON formatted string, those sequences of \/ will be automatically converted to /.

answered Nov 03 '13 at 16:59

Marcel Korpel

21,536
6
60
80

Thank you very much. I have two days with this problem "no problem" – Francisco José Segura Noya Nov 03 '13 at 17:33

score 1 · Answer 3 · answered Nov 03 '13 at 17:00

1

What you have is perfectly valid JSON, but if you want to remove it, you can do it with the JSON_UNESCAPED_SLASHES constant:

file_put_contents('data.json', json_encode($data, JSON_UNESCAPED_SLASHES));

answered Nov 03 '13 at 17:00

Amal Murali

75,622
18
128
150

Thank you very much. I have two days with this problem "no problem" – Francisco José Segura Noya Nov 03 '13 at 17:33
@FranciscoJoséSeguraNoya: Your issue is now solved? – Amal Murali Nov 03 '13 at 17:35

"ghosts" slashes, adding item to a json file? what do I do?

3 Answers3