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PHP - Random Array?
I dont know how to word this really. what I want to do is
Code: [Select] $Var[] = 3; $Var[] = 6; $Var[] = 2; $Var[] = 17; for($i=0; $i!=count($Var); $i++) { echo "#$i: ".$Var[$i]."\n"; } I know I might be able to use rand() but I need it to echo ALL of the variables in the array in a random order, I know if I use count to find out how many variables there are that it would echo them 4 times randomly but might echo the same variable 2 times making it to where it only echos 3 different varables, if I am being confusing please let me know, I just want to get this resolved, thanks! Similar TutorialsHey guys does anyone know how i would go about generating a random word from an array? For example: $words = array("[apple]","[banana]","[kiwi]"); how would i have php choose one of these words and then spit it out? Thanks!!! Hello all, I am newbie to php programming, any suggestions or advance greatly appreciated. I can't figure out how to output two array random numbers in ascending order. <?php $l_numbers = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47); $mega = range(1, 27); for($i = 0; $i <= 4; $i++) { $random1 = array_rand($l_numbers); echo "$random1 \n" ; } for($e = 1; $e <= 1; $e++) { $random2 = array_rand($mega); echo "<p> Mega number is $random2 </p>"; } echo "Winning numbers are $random1 and mega $random2"; ?> example: Winning numbers are 3,5,10,17,39 and mega 5. I have it to where it groups two parts of the Array randomly but I need to make it where it won't pair the same together, or if it has already been paired with a team then use another team. Each value of the array can only be used once. Here is my code shuffle($teamname); $loopCount = $games; for ($i = 0; $i < $loopCount; $i++) { $player1 = array_pop($teamname); $player2 = array_pop($teamname); if(is_null($player1)) { echo 'Not enough different teams to create '.$games.' games'; break; } // output to screen echo "Team: " . $player1 . " Vs Team: " . $player2 . "<br />"; } } Code: [Select] require('../conn/db_connection.php'); //seleksi restoran $pilih_resto="select * from restoran"; $query_pilih_resto=mysql_query($pilih_resto); echo "<h3>Truly Data : </h3>"; while($resto=mysql_fetch_array($query_pilih_resto)){ echo"<font color='red'>".$resto["id_restoran"].".". $resto["nama_restoran"]."</font><br>"; $seleksi_menu_1="select * from jenis_menu"; $query_menu_1=mysql_query($seleksi_menu_1); while($menu_1=mysql_fetch_array($query_menu_1)){ echo "<font color='green'>".$menu_1["id_jenis_menu"]."</font><br>"; $seleksi_data_eat="select * from eat where id_restoran like '".$resto["id_restoran"]."' and id_jenis_menu like '".$menu_1["id_jenis_menu"]."'"; $query_eat=mysql_query($seleksi_data_eat); while($eat=mysql_fetch_array($query_eat)){ echo $eat["nama_eat"]."<br>"; } } echo"<br>"; } echo "------------------------------<br>"; echo "<h3>Random Data : </h3>"; $pilih_resto_2="select * from restoran"; $query_pilih_resto_2=mysql_query($pilih_resto_2); $menu_PNP="PNP"; $menu_PBK="PBK"; $menu_UTM_1="UTM"; while($data_resto=mysql_fetch_array($query_pilih_resto_2)){ echo "<b>".$data_resto["id_restoran"]."-".$data_resto["nama_restoran"]."</b><br>"; $seleksi_data_eat_PNP="select * from eat where id_restoran like '".$data_resto["id_restoran"]."' and id_jenis_menu like '".$menu_PNP."'"; $seleksi_data_eat_PBK="select * from eat where id_restoran like '".$data_resto["id_restoran"]."' and id_jenis_menu like '".$menu_PBK."'"; $seleksi_data_eat_UTM="select * from eat where id_restoran like '".$data_resto["id_restoran"]."' and id_jenis_menu like '".$menu_UTM_1."'"; $query_eat_UTM=mysql_query($seleksi_data_eat_UTM); $jml_data_UTM=mysql_num_rows($query_eat_UTM); echo "Summary of main Menu : $jml_data_UTM<br>"; $query_eat_PNP=mysql_query($seleksi_data_eat_PNP); $query_eat_PBK=mysql_query($seleksi_data_eat_PBK); while($eat_PNP=mysql_fetch_array($query_eat_PNP)){ $data_eat_PNP[]=$eat_PNP["nama_eat"]; } while(list($index_PNP,$data_PNP)=each($data_eat_PNP)){ $data_eat_PNP_list[$index_PNP]=$data_PNP; } while($eat_PBK=mysql_fetch_array($query_eat_PBK)){ $data_eat_PBK[]=$eat_PBK["nama_eat"]; } while(list($index_PBK,$data_PBK)=each($data_eat_PBK)){ $data_eat_PBK_list[$index_PBK]=$data_PBK; } while($eat_UTM=mysql_fetch_array($query_eat_UTM)){ $eat_UTMx[]=$eat_UTM["nama_eat"]; } for($i=0;$i<$jml_data_UTM;$i++){ $random_data_PNP[$i]=array_rand($data_eat_PNP_list,1); $random_data_PBK[$i]=array_rand($data_eat_PBK_list,1); echo "<font color='red'>".$data_eat_PNP_list[$random_data_PNP[$i]]."</font>---<font color='green'>". $eat_UTMx[$i]."</font>---<font color='blue'>".$data_eat_PBK_list[$random_data_PBK[$i]]."</font><br>"; } } Please Help, There is a random error data how to create random data like this? Data => Restoran A: Menu appetizers : - Sup - Sate Usus - Trancam Main Menu - Nasi Goreng - Nasi Goreng Putih - Nasi + Ayam Penyet - Nasi + Bebek Panggang - Ikan Gurame Asam + Nasi - Nasi Soto Menu Dessert - Pudding - Buah Segar - Juice Aplukat Restoran B : Menu appetizers -Sup Ikan Paprika -Sup Jamur Spesial -Sup Urat Sapi Saus Tiram -Sup May Jala - Jala Main Menu - Bubur Ayam Kombinasi - Bubur Ayam/Sapi Clay Pot - Bubur Telor Pitan Clay Pot - Gurame Panggang - Pangsit Udang - Cumi-cumi Goreng Special - Kepiting Lembek Mentega - Sayap Ayam Panggang Dessert -Juice Alpukat -Mix Juice -Sui Kiau Goreng Salad -Ha Kaou Sayuran Out Put : Restoran A : Menu e ---+--- Main Menu --+---- Dessert ---------------------------------------------------- Sup ------- Nasi Goreng ------- Pudding Sup ------- Nasi Goreng Putih ------- Juice Aplukat Sate Usus ------- Nasi + Ayam Penyet ------- Pudding Sup ------- Nasi + Bebek Panggang ------- Buah Segar Trancam ------- Ikan Gurame Asam + Nasi ------- Buah Segar Sate Usus ------- Nasi Soto ------- Pudding Restoran B : Menu Pembuka ---+-- Menu Utama --+--- Menu Penutup ----------------------------------------------------------------------- Sup Ikan Paprika ------- Bubur Ayam Kombinasi ------- Juice Alpukat Sup Urat Sapi Saus Tiram ------- Bubur Ayam/Sapi Clay Pot ------- Sui Kiau Goreng Salad Sup May Jala-Jala ------- Bubur Telor Pitan Clay Pot ------- Juice Alpukat Kepiting Lembek Mentega ------- Gurame Panggang ------- Juice Alpukat Sup Urat Sapi Saus Tiram ------- Pangsit Udang ------- Mix Juice Sup May Jala-Jala ------- Cumi-cumi Goreng Special ------- Ha Kaou Sayuran Sup Jamur Spesial ------- Kepiting Lembek Mentega ------- Sui Kiau Goreng Salad Sup May Jala-Jala ------- Sayap Ayam Panggang ------- Ha Kaou Sayuran Note : appetizers and desserts at random based on count of data main menu Hi guys! i got this code: Code: [Select] <? $x = "abcde"; str_split($x); for ($k=0; $k<=119; $k++){ $ax = array($x[0],$x[1],$x[2],$x[3],$x[4]); shuffle($ax); $text = implode("", $ax) . ""; echo $text; echo "<br />"; } ?> if you test it you see that it is working but giving me allot of duplicates results! there is a way to ignore duplicaes while it is runing? thanx. I have a user table that holds email addresses and for testing purposes I am trying to replace every email address with an email address defined in an array. I would like to randomly choose an email address from the array and update the table with this address. When I run the following code it randomly chooses a email address from the array but then updates every row with this one email address. Can you someone please let me know what I am doing wrong. Thanks in advance. Code: [Select] $query = "SELECT * FROM user '"; $result = mysql_query($query); $input = array('email1', 'email2', 'email3', 'email4', 'email5', 'email6', 'email7'); $rand_keys = array_rand($input, 2); $replaceStr = $input[$rand_keys[0]]; while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) { $rand_keys = ""; $rand_keys = array_rand($input, 2); $replaceStr = $input[$rand_keys[0]]; mysql_query("UPDATE user SET email = '$replaceStr'"); } As above, I have a lottery style site that picks a random number between 1-8 but my users complain for some reason that this is not enough. So i was told to look into using fopen and random.org to generate a random number. Anyone have experience of this and perhaps a code snippet for me to look at and possibly use? help will be appreciated. I know this is not coding.. However... How tolerant is PHP from generating a random output from 1000s of entry columns in a mysql database. I would like to make a script that would potentially pick one of a 1000 results at random. is this a problem with being ran multiple times? Hi Everyone, I was wondering if anyone could help me make this code I wrote better and a bit more readable and shorter. I have 8 images on the home page so the php code is like this: Code: [Select] <?php $images = array('image1', '8', 'image2', 'image7', 'image5', 'image4', '9', 'image6'); $i = rand(0, count($images)-1); $selectedImage1 = "_images/showreel/{$images[$i]}.jpg"; ?> <?php $images = array('image1', '8', 'image2', 'image7', 'image5', 'image4', '9', 'image6'); $i = rand(0, count($images)-1); $selectedImage2 = "_images/showreel/{$images[$i]}.jpg"; ?> <?php $images = array('image1', '8', 'image2', 'image7', 'image5', 'image4', '9', 'image6'); $i = rand(0, count($images)-1); $selectedImage3 = "_images/showreel/{$images[$i]}.jpg"; ?> <?php $images = array('image1', '8', 'image2', 'image7', 'image5', 'image4', '9', 'image6'); $i = rand(0, count($images)-1); $selectedImage4 = "_images/showreel/{$images[$i]}.jpg"; ?> <?php $images = array('image1', '8', 'image2', 'image7', 'image5', 'image4', '9', 'image6'); $i = rand(0, count($images)-1); $selectedImage5 = "_images/showreel/{$images[$i]}.jpg"; ?> <?php $images = array('image1', '8', 'image2', 'image7', 'image5', 'image4', '9', 'image6'); $i = rand(0, count($images)-1); $selectedImage6 = "_images/showreel/{$images[$i]}.jpg"; ?> <?php $images = array('image1', '8', 'image2', 'image7', 'image5', 'image4', '9', 'image6'); $i = rand(0, count($images)-1); $selectedImage7 = "_images/showreel/{$images[$i]}.jpg"; ?> <?php $images = array('image1', '8', 'image2', 'image7', 'image5', 'image4', '9', 'image6'); $i = rand(0, count($images)-1); $selectedImage8 = "_images/showreel/{$images[$i]}.jpg"; ?> And the HTML is like this: Code: [Select] <div id="slider1" class="nivoSlider"> <img src="<?php echo $selectedImage1; ?>" alt="John Richard Cleckheaton West Yorkshire" /> <img src="<?php echo $selectedImage2; ?>" alt="John Richard Cleckheaton West Yorkshire" /> <img src="<?php echo $selectedImage3; ?>" alt="John Richard Cleckheaton West Yorkshire" /> <img src="<?php echo $selectedImage4; ?>" alt="John Richard Cleckheaton West Yorkshire" /> <img src="<?php echo $selectedImage5; ?>" alt="John Richard Cleckheaton West Yorkshire" /> <img src="<?php echo $selectedImage6; ?>" alt="John Richard Cleckheaton West Yorkshire" /> <img src="<?php echo $selectedImage7; ?>" alt="John Richard Cleckheaton West Yorkshire" /> <img src="<?php echo $selectedImage8; ?>" alt="John Richard Cleckheaton West Yorkshire" /> </div> I no this code is terrible but I am still learning. Just a few months ago I had never touched PHP. Any help would be greatly appreciated. Regards Barry Hi Guys I need some help this is my first real php website. Im trying to retrieve results from an accommodation database, to make the results fair I need to return a random set of results so each accommodation get a fair viewing and nobody is always at the bottom. The problem arises when i paginate the results, because each page executes a separate randomly ordered offset mysql query I can end up showing the some of the same results over and over on multiple pages. This is going to confuse and irritate searchers. How can i achieve results and paginate them where each accommodation gets a fair chance at the first page each time the database is searched? i wanted to choose 5 random numbers from 0-20. each number represents an index in an array. is there a way to pick out 5 random items from the array. say if random number generator piked a number 22, the last item in the array is at index 20, it wud then have to go to index 0. thanks! Hi Guys I have a code what inserts very simple queries to database, im trying to add a random reference number for each enrty using $reference = rand(111111111111,999999999999); but each time I add an entry it gives me the same random number previously generated for previous entry can you help pleasE? Hi All I am using the below code to display users registered on my site: Code: [Select] <div class="profilbox" id="apDiv11"><div></div> <div align="center">Registered Users</div> <div class="text_area"><?php //to display image from source - registerd users $dir = "profpics"; echo '<table>'; $result = mysql_query("SELECT * FROM users order by id"); while ($row = mysql_fetch_assoc($result)) { echo "<tr><td><img src=\"$dir/{$row['prof_pic']}\" width='40' height='40'>{$row['username']}</td></tr>"; } //close out table echo '</table>'; ?></div> </div> Could anybody tell me how i can limit this to 3 random results? I then plan adding a link to 'see all' Is there anyway in MySQL you can select a random record in a table? I normally do this by generating a random number first and then using that number to find a record but was wondering if there is an easier way. Thanks for any help. Wow, I have no clue what I'm doing.. I'm trying to make a random game and if you roll a 6, you will win 500 rp and I'm trying to insert the 500 rp into the user who is logged in ($_SESSION['username'). But I... just don't know where to begin. Here is my crappy coding that I just.. am stumped on: <p><?php $dice = rand(1,6); if($dice == 1){ echo "You rolled a <br><b>1</b>"; }if($dice == 2){ echo "You rolled a <br><b>2</b>"; }if($dice == 3){ echo "You rolled a <br><b>3</b>"; }if($dice == 4){ echo "You rolled a <br><b>4</b>"; }if($dice == 5){ echo "You rolled a <br><b>5</b>"; }if($dice == 6){ echo "You rolled a <br><b>6</b>"; } $winner = "500"; if($dice == 6); { include("haha.php"); $cxn = mysqli_connect($dbhost,$dbuser,$dbpassword,$dbdatabase); $sql = "INSERT INTO Member (rp) VALUES ('$winner')"; mysqli_query($cxn,$sql); } ?> Hi, I want to pick out a random letter from a to h. How can I do this? So everytime the page re-loads, a random letter (range a-h) will show. Thanks alot for any help. how do I pull out two random integers at the same time without ever possibly choosing the same integer twice? It's working great, but at some points after one of the random events goes through, I reload the page and it either gives me or takes away some starpoints without showing the message.. but it shows the message all the other times. Could someone help me debug this and see why it's doing that? Code: [Select] <?php include("config.php"); //To change the odds, change the second number in the rand() function. $rand = rand(1,3); if($rand == 1) { $sql = "SELECT * FROM randomevents WHERE rarity <= '10'"; $result = mysqli_query($cxn, $sql); //Write the events in here with the opener: $event[] = "#your event#"; while ($row = mysqli_fetch_assoc($result)) { $event[] = $row['phrase']; } //This will pick a random event and show it $renum = rand(0,count($event)); $display = $event[$renum]; if ($display == "") { $eventdisplay = ""; } else { $eventdisplay = "<table cellspacing=\"0\" class=\"events\" align=\"center\"><br> <tr><br> <td><center><b><h1>Random Event</h1></b></center></td><br> </tr><br> <tr><br> <td><img src=\"".$_SERVER['SCRIPT_NAME']."\"> <p><center>".$display."</center></p><br> </td><br> </table><br>"; $sql = "SELECT type FROM randomevents WHERE phrase='".$display."'"; $result = mysqli_query($cxn, $sql); $row = mysqli_fetch_assoc($result); if ($row['type'] == "gainsp") { $rand = rand(200,500); $sql = "UPDATE members SET starpoints = starpoints+$rand WHERE userid='".$_SESSION['userid']."'"; mysqli_query($cxn, $sql) or die("Query died: updating starpoints"); } elseif ($row['type'] == "losesp") { $rand = rand(50,100); $sql = "UPDATE members SET starpoints = starpoints-$rand WHERE userid='".$_SESSION['userid']."'"; mysqli_query($cxn, $sql) or die("Query died: updating starpoints"); } else {} } } else { $eventdisplay = ""; } ?> Alright, I have a random thing going on. Works perfectly fine. This is the code: Code: [Select] <?php include("config.php"); //To change the odds, change the second number in the rand() function. $rand = floor(rand(0,1)); if($rand == 1) { $sql = "SELECT * FROM randomevents WHERE rarity <= '10'"; $result = mysqli_query($cxn, $sql); while ($row = mysqli_fetch_assoc($result)) { $event[] = $row['phrase']; if ($row['type'] == 'gainsp') { $rand = rand(200,500); $sql = "UPDATE members SET starpoints = starpoints+$rand WHERE userid='".$_SESSION['userid']."'"; mysqli_query($cxn, $sql) or die("Query died: updating starpoints"); } } //This will pick a random event and show it $renum = floor(rand(0,count($event))); $eventdisplay = $event[$renum]; } ?> In the database, I have the phrases set as: "You have gained {$rand} starpoints!". How do you make that variable echo out as the $rand I'm generating on this page? It just keeps posting as is. When I went the {$rand} to display as the number I'm generating to set their starpoints to. So I guess how do you hold a variable in the database? Does anyone understand what I'm asking? Here as an image to help understand: Im trying to figure out the best way to random a line from a text file and after the random delete that line from the file. This way the same username cannot be picked twice thanks for any input |
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