Manipulate session multi-array [duplicate]

Question

I wanna to manipulate each variable inside my Array. I dont know how take a value for each array.

    <?php
    session_start();
    /*array  name, howmuch, cost*/
    $_SESSION['ID'][] = array("Soup", 3 , 1.25);
    $_SESSION['ID'][] = array("Puos", 1 , 3.25);

    foreach ($_SESSION['ID'] as $product=>$value){

        foreach ($value as $var)
       {
           /*HERE echo ("UR product is ". name );
                  echo (howmuch);
                  echo (costo*0.40 );  */
        }
     echo ("<br>"); }
      session_destroy();   ?>

This is not a well described question. You say that you want to manipulate the data, but you are only echoing data in your commented-out code. The accepted answer mutates the input array, but the question is not clear in this requirement. — mickmackusa
– mickmackusa ♦, Commented 2 days ago

bfavaretto · Accepted Answer · 2011-07-04 04:00:25Z

2

// loop with $product as a reference
foreach ($_SESSION['ID'] as &$product) {
   // 60% discount on every price
   $product[2] *= 0.4;
}

or

// use full path to each value to be changed
foreach ($_SESSION['ID'] as $key=>$product) {
   // 60% discount on every price
   $_SESSION['ID'][$key][2] *= 0.4;
}

edited Jul 4, 2011 at 4:00

answered Jul 2, 2011 at 5:54

bfavaretto

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1 Comment

bfavaretto Over a year ago

The first example looks cleaner, but sometimes you have to be careful with references. I suggest you read the PHP manual section about them.

deceze · Accepted Answer · 2011-07-02 05:20:24Z

0

foreach ($_SESSION['ID'] as $value) {
    // $value will be array("Soup", 3 , 1.25), for example
    echo $value[0];
    echo $value[1];
    echo $value[2];
}

answered Jul 2, 2011 at 5:20

deceze♦

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1 Comment

a3rxander Over a year ago

good, but i cant manipulate variable , just print like a String.

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