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Found 3 results

  1. Good morning Freaks, I hope you're all having a productive week. I've a question about an issue I'm having accessing static properties. I've been doing some reading on them but haven't yet deployed one successfully. I have a bunch of classes and I want to make the database query tables all static so they can be used cross-class, so to speak. Here's a sample attempt -> class Post { private $conn; private $user_obj; public static $table = "posts"; public function __construct($conn, $username) { $this->conn = $conn; $this->user_obj = new User($conn, $username); // $this->table = "posts"; } and accessing it here -> public function getBreakingNews() { $query = mysqli_query($this->conn, "SELECT * FROM self::$table WHERE type='breaking' ORDER BY RAND()"); This gets me an error that $table doesn't exist as does using Post::$table. When I assign $this->table = 'posts' (the commented out line in __construct) and access it by $this->table all works great. What am I doing wrong that it won't find that public static property? In the manual there's this example, which I feel like I've stayed true to -> class Foo { public static $my_static = 'foo'; public function staticValue() { return self::$my_static; } } ..... print Foo::$my_static . "\n"; The only difference I see is that they're printing the value and I'm trying to use it in a database query. Can anyone guide me through this mistake I'm apparently making and can't see? I've tried both self::$table and Post::$table, self::table and Post::table, every permutation I can think of but still the variable is saying it's unassigned. Share your knowledge please
  2. Hi Freaks, I'm looking for advice if someones willing to give it. Here's the situation -> I've been working on a project, I started to learn PHP specifically to complete this idea I had. My code has evolved a lot over time as I've started understanding more. Up until today I've been working on it with just the registration functionality, no login. I had my username hardcoded into the $user_obj instantiation. I decided I wanted to try to make category subscription functionality and doing that I realized I was better off finishing the login form first so as to get a users subscriptions into a session variable at login. This has brought about the issue of getting an unassigned variable warning from the User class when not logged in. How I made all my other classes was putting a $user in the __construct parameter for each class. I now feel this may have been a rookie error since I'm having problems with error messages especially undefined array keys and variables when there isn't a session started. It's become a bit of a mess. So the advice I'm looking for and hoping to find here is how you folks handle non $_SESSION sessions, when a user is just scrolling the site not logged in. Did I make a mistake requiring $user for each class __construct? should I move the $user parameter to only the methods that require them? Is there a simpler solution that my inexperience causes to elude me? What would you folks do in this situation?
  3. Good afternoon everyone, and happy holidays! Although my membership might not qualify as "new" to this forum, I've never used my account here before but today I think I finally found a reason to! I'm trying to exclude four (4) values from array, which will then echo the remaining values into a drop-down box on a form. Here is the contents of the array: Array ( [0] => stdClass Object ( [id] => 22 [icao] => CYQM [name] => Greater Moncton International Airport - CHARTER [country] => Canada [lat] => 46.1122 [lng] => -64.6786 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [1] => stdClass Object ( [id] => 19 [icao] => EINN [name] => Shannon International Airport - CHARTER [country] => Ireland [lat] => 52.702 [lng] => -8.92482 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [2] => stdClass Object ( [id] => 16 [icao] => KAUS [name] => Austin-Bergstrom International Airport [country] => United States [lat] => 30.1945 [lng] => -97.6699 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [3] => stdClass Object ( [id] => 9 [icao] => KDEN [name] => Denver International Airport [country] => United States [lat] => 39.8583 [lng] => -104.667 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [4] => stdClass Object ( [id] => 2 [icao] => KLAS [name] => McCarran International Airport [country] => United States [lat] => 36.0827 [lng] => -115.154 [hub] => 1 [fuelprice] => 0 [chartlink] => ) [5] => stdClass Object ( [id] => 5 [icao] => KLGB [name] => Long Beach Airport [country] => United States [lat] => 33.8175 [lng] => -118.152 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [6] => stdClass Object ( [id] => 14 [icao] => KOAK [name] => Metropolitan Oakland International Airport [country] => United States [lat] => 37.721 [lng] => -122.222 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [7] => stdClass Object ( [id] => 10 [icao] => KPDX [name] => Portland International Airport [country] => United States [lat] => 45.5887 [lng] => -122.598 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [8] => stdClass Object ( [id] => 3 [icao] => KPHX [name] => Phoenix Sky Harbor International Airport [country] => United States [lat] => 33.4359 [lng] => -112.01 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [9] => stdClass Object ( [id] => 12 [icao] => KRNO [name] => Reno/Tahoe International Airport [country] => United States [lat] => 39.4991 [lng] => -119.768 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [10] => stdClass Object ( [id] => 4 [icao] => KSAN [name] => San Diego International Airport [country] => United States [lat] => 32.7334 [lng] => -117.188 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [11] => stdClass Object ( [id] => 17 [icao] => KSAT [name] => San Antonio International Airport [country] => United States [lat] => 29.5338 [lng] => -98.47 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [12] => stdClass Object ( [id] => 6 [icao] => KSEA [name] => Seattle-Tacoma International Airport [country] => United States [lat] => 47.449 [lng] => -122.309 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [13] => stdClass Object ( [id] => 8 [icao] => KSFO [name] => San Francisco International Airport [country] => United States [lat] => 37.6188 [lng] => -122.376 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [14] => stdClass Object ( [id] => 15 [icao] => KSJC [name] => San Jose International Airport [country] => United States [lat] => 37.3619 [lng] => -121.929 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [15] => stdClass Object ( [id] => 11 [icao] => KSLC [name] => Salt Lake City International Airport [country] => United States [lat] => 40.7884 [lng] => -111.978 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [16] => stdClass Object ( [id] => 7 [icao] => KSMF [name] => Sacramento International Airport [country] => United States [lat] => 38.6952 [lng] => -121.592 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [17] => stdClass Object ( [id] => 13 [icao] => KTNT [name] => Dade-Collier Training Airport - CHARTER [country] => United States [lat] => 25.862 [lng] => -80.8967 [hub] => 0 [fuelprice] => 0 [chartlink] => ) [18] => stdClass Object ( [id] => 18 [icao] => LTAI [name] => Antalya International Airport - CHARTER [country] => Turkey [lat] => 36.8987 [lng] => 30.8005 [hub] => 0 [fuelprice] => 0 [chartlink] => ) ) 1 As you can see, it's one (1) array that's broken up into a separate stdClass Object() array of some sort. My goal here is to exclude the following [id] values from the set of arrays above: 13, 18, 19, 22 The problem is that each array key (ex. [1], [2], [3]) from the first array will change when the contents of the array is increased over time. Therefore, I cannot simply exclude array keys [1], [2], [17], [18] Here's the code I'm working with now: <div id="depapttab"> <p>Select your departure airport:</p> <select id="depicao" name="depicao"> <option value="">Select All</option> <?php if(!$depairports) $depairports = array(); foreach($depairports as $airport) { if($depairports->id != array(13,18,19,22)) { echo '<option value="'.$airport->icao.'">'.$airport->icao.' - '.$airport->name.'</option>'; } } ?> </select> <input type="submit" name="submit" value="Find Flights" /> </div> I just don't know how to include that darn stdClass Object() in my if() statement. If someone could lend a hand, it'd be much appreciated! Thanks in advance!
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