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How to use $_SESSION variable in PHP
Using $_SESSION instead of Cookies. Tutorial on how create and use $_SESSION in PHP.
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1.
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$_SESSION variable stores data on a web server for each user separately, which makes data accessible from other php pages as well.
First thing you need to do to use $_SESSION variable is put this in the very first row of your code:
<?php
session_start();
?>
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2.
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Now enter the following code in index.php:
<?php
$_SESSION['x']='John Deer';
echo $_SESSION['x'];
?>
First we store in $_SESSION['x'] value 'John Deer' and function echo displays the variable value.
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3.
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This is what you get in your web browser if you you open index.php.
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4.
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Now open a new document in the same folder and save it as index2.php.
Again put the following code in the very first row of the new index2.php document:
<?php
session_start();
?>
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5.
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Inside the <body> tag enter the following code:
<?php
echo $_SESSION['x'];
?>
In this case we didn't define the variable value, we just displayed the existing value of $_SESSION['x'] variable.
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6.
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Now try and open index2.php in your browser and you should be able to see value John Deer displayed. Meaning the $_SESSION['x'] variable value has been successfully transferred from the index.php to index2.php page.
Variable $_SESSION gets automatically deleted after about 15 minutes of user inactivity.
In case you want to create another $_SESSION['x'] variable, just put in some other letter instead of an x.
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