Tutorial by Examples

The $_SESSION variable is an array, and you can retrieve or manipulate it like a normal array. <?php // Starting the session session_start(); // Storing the value in session $_SESSION['id'] = 342; // conditional usage of session values that may have been set in a previous session if(!i...

If you've got a session which you wish to destroy, you can do this with session_destroy() /* Let us assume that our session looks like this: Array([firstname] => Jon, [id] => 123) We first need to start our session: */ session_start(); /* We can now remove all the v...

Starting with PHP Sessions we can pass an array with session-based php.ini options to the session_start function. Example <?php if (version_compare(PHP_VERSION, '7.0.0') >= 0) { // php >= 7 version session_start([ 'cache_limiter' => 'private', ...

Checking if session cookies have been created Session name is the name of the cookie used to store sessions. You can use this to detect if cookies for a session have been created for the user: if(isset($_COOKIE[session_name()])) { session_start(); } Note that this method is generally not ...

As we all are aware that PHP writes session data into a file at server side. When a request is made to php script which starts the session via session_start(), PHP locks this session file resulting to block/wait other incoming requests for same session_id to complete, because of which the other requ...

Many developers have this problem when they work on huge projects, especially if they work on some modular CMS on plugins, addons, components etc. Here is solution for safe session start where if first checked PHP version to cover all versions and on next is checked if session is started. If session...