CODEWITHSUNDEEP
phparrays
Frankie
Frankie

Reputation: 499

Php - passing variable inside an array

my script work fine if this function is written : 

$extension_allowed =array(".pdf",".jpg",".jpeg",".png",".txt",".doc",".docx", ".odt", ".rtf", ".xls", ".xlsx", ".ods");

But, if I want config the extensions from application config and extract this extension from a query, how to pass the extensions inside an array?

// extensions
$extensionsUploadFileQ = mysql_query("
SELECT 
    *
FROM table_config
WHERE field1 = 'EXTENSIONS_UPLOAD'
");
$extensionsUploadFileR=mysql_fetch_array($extensionsUploadFileQ);
$extensionUploadFileParameter=$extensionsUploadFileR['value_extensions'];

the result of query, passing at the variable $extensionUploadFileParameter but not work by this array:

$extension_allowed =array($extensionUploadFileParameter);

How to fix this?

Thanks

Upvotes: 2

Views: 424

Answers (3)

Frankie
Frankie

Reputation: 499

Thanks at all. The script work fine with this: 

 preg_match_all('/(.\w+)/', $extensionUploadFileParameter, $matches);  
$extension_allowed = $matches[0];

eval() is dangerous: The eval() language construct is very dangerous because it allows execution of arbitrary PHP code

Upvotes: 0

Subscriberius
Subscriberius

Reputation: 866

If I understood well in you MySQL DB you have your "EXTENSIONS_UPLOAD" as a string like ".pdf,.jpg,.jpeg,.png,.txt,.doc,.docx" and you want just to convert it to the PHP array type.

If yes then try to use explode PHP function:

// extensionUploadFileParameter = ".pdf,.jpg,.jpeg";
$extension_allowed = explode(",", $extensionUploadFileParameter);

/* 
   $extension_allowed will have:

   array(3)
   (
     [0] => string(4) ".pdf"
     [1] => string(4) ".jpg"
     [2] => string(4) ".jpeg"
   )
*/

OR

// extensionUploadFileParameter = '".pdf",".jpg",".jpeg"';
preg_match_all('/(.\w+)/', $extensionUploadFileParameter, $matches);  
$extension_allowed = $matches[0];

/*
 $extension_allowed will have:

 Array
 (
   [0] => .pdf
   [1] => .jpg
   [2] => .jpeg
 )
*/

I hope it helps.

Good luck.

P.S. Try to avoid using "eval" function:

Caution The eval() language construct is very dangerous because it allows execution of arbitrary PHP code. Its use thus is discouraged. If you have carefully verified that there is no other option than to use this construct, pay special attention not to pass any user provided data into it without properly validating it beforehand.

Upvotes: 1

Skamielina
Skamielina

Reputation: 802

You wrote:

in mySQL filed i have this value string: ".pdf",".jpg",".jpeg",".png",".txt",".doc",".docx", ".odt", ".rtf", ".xls", ".xlsx", ".ods" I think: when this tring is extract from a query, was passing at the variable $extensionUploadFileParameter – Frankie

You can use eval function

eval('$extension_allowed = array(' . $extensionUploadFileParameter . ');');

Upvotes: 1

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