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session_encode

php at mikeboers dot com
14-Jul-2007 11:31


If anybody wants to encode any arbitrary array in the session serialization style, I have come up with the following function ( along with a corresponding decoding function in the session_decode notes ) to do just that.



Note the step I take to make sure we are not using a reference of the array, because calling session_raw_encode( $_SESSION ) ; will modify the real session when doing the recursion checks.



<?php



function session_raw_encode( $array, $safe = true ) {

    

    // the session is passed as refernece, even if you dont want it to

    if( $safe )

        $array = unserialize(serialize( $array )) ;



    

    $raw = '' ;

    $line = 0 ;

    $keys = array_keys( $array ) ;

    foreach( $keys as $key ) {

        $value = $array[ $key ] ;

        $line ++ ;

        

        $raw .= $key .'|' ;

        

        if( is_array( $value ) && isset( $value['huge_recursion_blocker_we_hope'] )) {

            $raw .= 'R:'. $value['huge_recursion_blocker_we_hope'] . ';' ;

        } else {

            $raw .= serialize( $value ) ;

        }

        $array[$key] = Array( 'huge_recursion_blocker_we_hope' => $line ) ;

    }

    

    return $raw ;

    

}



?>

Onur Yerlikaya < http://www.witkey.org >
18-Jul-2006 08:21


<?php

session_start();

# boolean type

$_SESSION['logged']     = true;

# string type

$_SESSION['name']    = "Onur Yerlikaya";

# integer type

$_SESSION['age']     = 17;



// logged|b:1;name|s:14:"Onur Yerlikaya";age|i:17;



function readSessions() {

    $encodedData    = session_encode();

    $explodeIt    = explode(";",$encodedData);

    for($i=0;$i<count($explodeIt)-1;$i++) {

        $sessGet    = explode("|",$explodeIt[$i]);

        $sessName[$i]    = $sessGet[0];

        if(substr($sessGet[1],0,2) == "s:") {

            $sessData[$i]    = str_replace("\"","",strstr($sessGet[1],"\""));

        } else {

            $sessData[$i]    = substr($sessGet[1],2);

        } // end if

    } // end for

    $result        = array_combine($sessName,$sessData);

    return $result;

}    



/*

readSessions Func shows encoded data in array

Array

(

    [logged] => 1

    [name] => Onur Yerlikaya

    [age] => 17

)

*/

print_r(readSessions());

?>

<carlos sica>sica at wnet dot com dot br
05-May-2005 09:19


session_encode() just return the session dataset in a formatted form



session_start();



$_SESSION['login_ok'] = true;

$_SESSION['nome'] = 'sica';

$_SESSION['inteiro'] = 34;



echo session_encode();



this code will print



login_ok|b:1;nome|s:4:"sica";inteiro|i:34;

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session_encode

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