CODEWITHSUNDEEP
phparrays
GiGi
GiGi

Reputation: 113

array to string function can't work

I have a function like this:

function array2string($data) {
    if($data == '') return '';
    return addslashes(var_export($data, TRUE));
}

I invoke this function convert $_REQUEST Array to String just like

array2string($_REQUEST)

and convert the result String to Array use this function:

function string2array($data) {
    // print_r($data);
    $data=str_replace('\'',"'",$data);
    // $data=str_replace(''',"'",$data); // add by futan 2015-04-28
    $data=str_replace("\'","'",$data);
     // print_r($data);exit();
    if($data == "") return array();
    @eval("\$array = $data;");
    return $array;
}

Generally, it can work, bur sometimes,it doesn't work.
the result like this:

array (  \'name\' => \'xxx

I cant find any problem, because I cant recurrence error. someone can help me??

Upvotes: 0

Views: 57

Answers (2)

Konstantin Pereiaslov
Konstantin Pereiaslov

Reputation: 1814

Another alternative besides serialize would be to use json_encode:

 $array = ['foo' => 'bar'];
 $string = json_encode($array); // $string now has {'foo': 'bar'}

 // Restore array from string. 
 // Second parameter is passed to make sure it's array and not stdClass
 $array = json_decode($string, true);

Don't invent your function unless you absolutely need to. If you think you do, please add an explanation, why, so that we can help.

Upvotes: 0

Ulver
Ulver

Reputation: 905

Instead of creating your own custom function to get the string representation of the array/object and vice versa, you should use the PHP native serialize() / unserialize() for that purpose:

// Serialize the array data. This string can be used to store it in the db
$serialised_string = serialize($_REQUEST);

// Get the array data back from the serialized string
$array_data = unserialize($serialised_string);

Also you could run into PHP injection issues by eval() usage in your custom function string2array().

Upvotes: 3

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