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PHP

Björn Norén
Björn Norén
9,569 Points
Posted by Björn Norén
Björn Norén
9,569 Points

Turn document.txt into a Array? PHP

Hi, I have created this easy page where you can put in content into a box: http://studenter.miun.se/~bjno1501/dt057g/webbutveckling2/php/practise/project/project.php

.. and the information is saved into a text-file named document.txt. Right now, if you look at that file, it looks like this: s:4:"fhfh";s:3:"lkn";s:3:"lkn";s:5:"bhvhv";s:5:"nknkn";s:3:"jkh";s:3:"lkn";s:6:"iugiug";s:4:"dgnf";s:3:"dfh";s:5:"sdsds";s:9:"fgmfmgfgm";s:4:"sfsf";s:4:"jnjn";s:3:"kjn";

My question is: how do unserialize this so I can echo all of the information? Because when I now unserialize this and then echos is, I get: "fhfh", which is the first part of the information. Am I supposed to turn it into a Array?

Any help is very much appretiated! Thank you!

2 Answers

Codin - Codesmite
Codin - Codesmite
8,600 Points
Codin - Codesmite
Codin - Codesmite
8,600 Points 
<?php
    $arr = unserialize(/* Your serialized content or variable here */);
    var_dump($arr);
?>

By saving the result of your unserialize to an array you will be able to loop through the contents :)

<?php
    $arr = unserialize(/* Your serialized content or variable here */);
    foreach($arr as $x){
        echo $x . '<br>';
    }
?>
Björn Norén
Björn Norén
9,569 Points
Björn Norén
Björn Norén
9,569 Points

Hi, I have tried to use foreach, but I get this error: "Invalid argument supplied for foreach()"

Do you hknow what could be wrong? Thank you for reaching out!

Björn Norén
Björn Norén
9,569 Points
Björn Norén
Björn Norén
9,569 Points

This is how the code looks like: 

<?php


$file = "./document.txt";                       


?>


<html>


<body>


<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">


  Name: <input type="text" name="fname">


  <input type="submit">


</form>


<?php


if ($_SERVER["REQUEST_METHOD"] == "POST") {


    // collect value of input field


    $name = $_POST['fname'];


    if (empty($name)) {


        echo "Name is empty";


    } else {


        $ser = serialize($name); 


        file_put_contents($file, $ser, FILE_APPEND | LOCK_EX);


        $document = file_get_contents($file);    


        $unser_document = unserialize($document);


        foreach($unser_document as $x){


            echo $x . '<br>';


        } 


    }


}


?>


</body>


</html>
Codin - Codesmite
Codin - Codesmite
8,600 Points
Codin - Codesmite
Codin - Codesmite
8,600 Points

Remove the foreach array and try:

  var_dump($unser_document);

This is just to dump the contents of $unser_documnet to make sure it is an array and contains your content as the error you are recieiving is normally caused by foreach looping something that is not an array.