PHP - My Foreach Statement Is Not Finding The Array. Can Anyone See Why?
I am having a go at writing my own simple gallery.
As the I want to display an image from a folder in a directory of all the images... for example, I have 10 folders each containing images. I want my code to take image 01.jpg out of each folder and display it on my page, so that when I add folders to my main images folder, they will automatically be added to the page... but I only want the last 10 folders to display... so once I have 20 folders, it only shows 10. I also want the images to be 5 across and then make a new row. My folders will be numbered in order... 001, 002, 003, etc... and I need them sorted in reverse order, so the folder added last is displayed first. So... this is where I am at with the code : Code: [Select] $dir = "gallery/"; if (is_dir($dir)) { [color=red] foreach(array_keys($file) as $n) {[/color] if ($n+1 == 5) { echo "<td><img src=\"" . $dir . $file . "/01.jpg\" width=\"140px\" height=\"93px\" alt=\"\" /></td></tr><tr>"; } elseif ($n+1 > 10) { echo ""; } else { echo "<td><img src=\"" . $dir . $file . "/01.jpg\" width=\"140px\" height=\"93px\" alt=\"\" /></td>"; } closedir($dh); } } For some reason, I am getting the following error on the page : Warning: First argument to array_keys() should be an array in /path/to/gallery.php on line 8 Warning: Invalid argument supplied for foreach() in /path/to/gallery.php on line 8 line 8 is the one in red above. So... I have a couple of questions... 1. What have I done wrong so far? I cannot see it 2. How would I then go about putting the galleries in reverse order? I know it must be rsort, but not to sure if I need to do this first or after... ? Any help greatly appreciated, and I would also be greatful f an idiot's explanation, as I am really trying to understand all this! I'm getting there... slowly! Similar TutorialsI'm not sure if the title explains it very well, but here is an image of it. I am trying to figure out how to access the option selected (equal, not equal, etc.), along with its input box, for each column (the checkboxes on the right) selected. The purpose of this is to allow a non-programming administrator user to create a custom query to access information. I can find out which checkboxes are selected no problem, but finding the accompanying drop-down option and input box is difficult for me. How do I do this? If you have a suggestion on how to change it, I'm very open. Thank you in advance! Code: [Select] if(!isset($_POST['submit'])) { echo " <form method='post'> <table> <tr> <td valign='top'>SELECT</td> <td valign='top'> <table>"; // LIST ALL COLUMNS IN A TABLE $result = mysql_query("SELECT * FROM table_name") or die(mysql_error()); $rowcount=mysql_num_rows($result); $y=mysql_num_fields($result); for ($x=0; $x<$y; $x++) { echo " <tr> <td> <input type='checkbox' name='fields[]' value='".mysql_field_name($result, $x)."'>".mysql_field_name($result, $x)." </td> </tr>"; } echo " </table> </td> <td valign='top'>FROM allocations</td> <td valign='top'>WHERE</td> <td> <table>"; // LIST ALL COLUMNS IN A TABLE $result = mysql_query("SELECT * FROM table_name") or die(mysql_error()); $rowcount=mysql_num_rows($result); $y=mysql_num_fields($result); for ($x=0; $x<$y; $x++) { echo " <tr> <td> <input type='checkbox' name='column[]' value='".mysql_field_name($result, $x)."'>".mysql_field_name($result, $x)." </td> <td> <select name='operator[]'> <option value='='>equals</option> <option value='<>'>does not equal</option> <option value='>'>greater than</option> <option value='<'>less than</option> <option value='>='>greater than or equal to</option> <option value='<='>less than or equal to</option> <option value='LIKE'>is like</option> </select> </td> <td><input type='text' name='criteria[]'></td> </tr>"; } echo " </table> </td> <td valign='top'><input type='submit' value='Process Query' name='submit' class='submit'></td> </tr> </table> </form>"; } else { echo "<b>Fields to edit:</b> "; foreach ($_POST['fields'] as $fields) { echo $fields,", "; } echo "<br><br>"; echo "<b>Columns to query:</b> "; foreach ($_POST['column'] as $columns) { echo $columns," HERE IS THE SPOT, "; } } Hi I am new to PHP and I am having an issue with a foreach loop combined with an if statement, basically the if statement is getting the data from the first result in the foreach but not getting the second result, I have tried implement a count by using a variable to iterate but it isnt working: Code as follows: foreach(findCustomAlerts($customerid) as $key=>$value){ echo "ID of cat : ".$rifdid = $value['Catid']."<br>"; echo "Visits required per day : ".$visitsneeded= $value['Visits required']."<br>"; } foreach(getTodaysVisits($device_id) as $rfid){ foreach($rfid as $key=> $read){ if($key ==$rifdid && $read < $visitsneeded) { echo"<br>". $key." has not visited enough"; } } } Ouput is :
ID of cat : 5609 Array ( [rfid_id] => Array ( [23641] => 1 [5609] => 3 ) ). -------> this is the array data
----------------------------------------------- How can I get the loop to iterate to the next value?
Edited October 3, 2020 by Barand code block/indents Object- Take array of IP addresses and add up all occurrences of a particular IP address. //$item is an array of IP addresses foreach ($item as $key => $unique_ip) { if($unique_ip == $ip) $a++; } echo $a; I get a blank page. What am I missing? HI, I have a foreach loop but after some execution it begins to show me this:Invalid argument supplied for foreach() ... so I want to exit from it.how can I do that? Thanks I have some code that will update a record and is generic, meaning any POST variables can be used - whatever you have on the form. See below: Code: [Select] $set = array(); foreach($_POST as $field => $value){ $field = mysql_real_escape_string($field); $value = mysql_real_escape_string($value); $set[] = "`{$field}` = '{$value}'"; } $query .= implode(", ",$set) . " WHERE $id_name = '".$id."' LIMIT 1"; mysql_query($query) or die(mysql_error()); My question is, how would I modify this to insert a NEW record (not update an existing one). I'm not sure how to order this within a foreach statement because the add query has a different form: insert into tabel (all the fieldnames here) VALUES (all the values here) hi, i am having issues with sorting within a conditional statement. please see the code below. right now, i ve commented out the sorting below. basically i want to sort by: $venue1->hereNow->count. I am managing to pull the data correctly. see: http://marineboudeau.com/lab/4sq/ <?php if (is_object($venue->response)) { //sort($venue->response->groups[0]->items->hereNow->count); foreach ($venue->response->groups[0]->items as $venue1) { if ($venue1->hereNow->count != '0'){ //var_dump ($venue1); echo "<div style='font-weight:bold;'>".$venue1->name."</div>"; echo "<div>".$venue1->location->address." ".$venue1->location->city."</div>"; echo "<div>".$venue1->hereNow->count."</div>"; echo "</br>"; } } }?>() any idea what i need to do to make it happen? thank you. marine I am trying to locate an array in an array of arrays:
$card_pos = array_search($target, $_SESSION['leitner']['boxes'][($box - 1)]); if ($card_pos !== false) { // Do my stuff here }echo '<pre> oh no -- didn\'t find '; print_r($target); echo "in ";print_r ($_SESSION['leitner']['boxes'][($box + 1)]);echo '<br>leitner';print_r ($_SESSION['leitner']); echo '</pre>';but I don't find the target in the array though it is clearly there as you can see in the output: oh no -- didn't find Array ( [pos] => v5g [tense] => agerimasu ) in Array ( [0] => Array ( [pos] => v5g [tense] => agerimasu ) ) leitnerArray ( [boxes] => Array ( [1] => Array ( ) [2] => Array ( ) [3] => Array ( [0] => Array ( [pos] => v5g [tense] => agaru ) [1] => Array ( [pos] => v5g [tense] => agarimasu ) [2] => Array ( [pos] => v5g [tense] => agarimasen ) [3] => Array ( [pos] => v5g [tense] => agaranai ) [4] => Array ( [pos] => v5g [tense] => ageru ) [5] => Array ( [pos] => v5g [tense] => ageranai ) [6] => Array ( [pos] => v5g [tense] => agerimasen ) [7] => Array ( [pos] => v5g [tense] => agerimasend ) [8] => Array ( [pos] => v5g [tense] => agereba ) [9] => Array ( [pos] => v5g [tense] => agareba ) [10] => Array ( [pos] => v5g [tense] => agatte ) [11] => Array ( [pos] => v5g [tense] => agette ) ) [4] => Array ( [0] => Array ( [pos] => v5g [tense] => agerimasu ) ) [5] => Array ( ) ) [denom_total] => Array ( [1] => 0 [2] => 0 [3] => 36 [4] => 40 [5] => 40 ) [denom_max] => 40 ) Hi PHPfreaks, I've got a problem Ive been faced with a few days now, and for the life of me Im unable to solve it. What I have is a multidimensional array, that I need to parse and retreive every possible outcome possible Below is a basic example of how the array would look Code: [Select] Colour Black White Blue Finish Matt Gloss What I need to be able to do is, as I said, Show all the possible combinations there is. below is what i'd have achieved after one of you helpful souls points me in the right direction. Code: [Select] --> Color: Black --> Color: White --> Color: Blue --> Finish: Matt --> Finish: Matt --> Color: Black, Finish: Matt --> Color: White, Finish: Matt --> Color: Blue, Finish: Matt --> Color: Black, Finish: Gloss --> Color: White, Finish: Gloss --> Color: Blue, Finish: Gloss As you can see, Only ONE (or no) value is picked from each section. Just to confirm: the number of option groups WILL change...... So I could have colour, finish, size, weight and many more. the number of values in the groups WILL change....... so under colour, I could also have pink, green, indigo, gray. Below is how this array is structured Code: [Select] Array ( [0] => Array ( [parent] => Colour [values] => Array ( [0] => Array ( [name] => Black ) [1] => Array ( [name] => White ) ) ) [1] => Array ( [parent] => Finish [values] => Array ( [0] => Array ( [name] => Matt ) [1] => Array ( [name] => Gloss ) ) ) ) Would anyone have any suggestion on how this can be done? I've pulled out every single strand of hair I've got now, so thought i'd admit defeat and let someone else have a go Many thanks inadvance. Hi, I have a Comma Delimited File called "houses.txt" with the contents of: HA11QS, 200, house1.jpg, 4 HA22BR, 280, house2.jpg, 10 HA33AB, 390, house3.jpg, 3 HA44CD, 320, house4.jpg, 8 I have a web form "form2.html": Code: [Select] <html> <head> <title>Untitled Document</title> </head> <body> <form action="any.php" method="post"> Please Enter Anything <input type="text" name="any"> <input type="submit" value="Submit"> </form> </body> </html> and PHP code of "any.php": <?php if (isset($_POST['any'])) { $filename = "houses.txt"; $fileOpen = fopen($filename, "r"); $max = $_POST['any']; $rowsArr = file ($filename); foreach ($rowsArr as $row) { $lineDetails = $row; $item_array = explode (",", $row); if (in_array($max,$item_array)) { echo("Post Code - " . $item_array[0]. "<br>"); echo("Price - " . $item_array[1]. ",000 <br>"); echo("Picture - " . $item_array[2]. "<br>"); echo("Number of Visits - " . $item_array[3]. "<br>"); echo("<br>"); } } fclose($fileOpen); } ?> What i need is for the user to input anything they wish for example: 4, which would search the array and find that the first house has had 4 visits or HA44CD, to find the last house on the list etc ... however unfortunatley its not working for, if anyone can help me i would grateful Thank You Good day, Is there a simple way to find and list duplicates i an array and insert these to a new one? I have: $array[0] = "asd" $array[1] = "ter" $array[2] = "asd" $array[3] = "asd" $array[4] = "xfh" From that, I need this: $newarray[0] = "0" $newarray[1] = "2" $newarray[2] = "3" I have poked around "array_not_unique" and "in_array" a bit, but can't wrap my head around it enough for it to work... Any and all help are much appreciated. Thanks in advance! Hi i have two arrays, activity and feed.. contains 100 arrays, $activity = array(0,1,2....,100); contains 5 arrays $feed = array(100,50,25,12,75); I have 7 ranges, (0 -15),(15-30),(30-45),...(90-105) now i need to compare feed array with activity array to find in which range it was... Example, $feed[0] = 100, then it is in (90-105) range $feed[3] = 12, then it is in (0-15) range.. ... how to find this range?? please help me.. I have build a small form that take the zip code that user enter and if is on my list will redirect to a sub domain craigslist.
I was checking all the zip codes and is pretty hard to know to what bigger city to attribute the given zip code and for that I was thinking to a simple idea to use, I am not sure how much exact will be but I think will do the trick for the moment.
The zip code range start from 00501 to 99950.
I create a array with the biggest city shown in craigslist and the zip code that correspond.
Now the tricky part, what I will do with the rest of the zip codes and my idea is to measure the distance from one to another zip code and which zip code from the array is closer from given one to take it.
<?php $zip = $_GET['zip']; $z = array ( 36830 => array ( 'auburn.craigslist.org' ), 35242 => array ( 'bham.craigslist.org' ), 36301 => array ( 'dothan.craigslist.org' ), 35630 => array ( 'shoals.craigslist.org' ), 35901 => array ( 'gadsden.craigslist.org' ) ?> Exemple: $zip= 36870 // the code received from the user 36870 - $array= ( 'auburn.craigslist.org' ), (36830 = 40) (36301 = 569) (36911 = -41) // the minus will be excluded (....etc)After checking the zip code with the ones from array, the smaller score will attribute the sub-domain correspond from the array. I hope will don t be the case when will get the same result from two zip codes:) Now I am using this rule: $zip0 = (isset($z[$zip][0]) && $z[$zip][0] != '') ? $z[$zip][0] : 'craigslist.org/about/sites#US';and I was thinking to redirect the user for a page to enter the state and the city. But I wish to make it more precises and not to involved the user so much. But if there are any other suggestions I will be glad to hear them. Hi folks, i have a complex problem (for me anyway) but i am sure with your help this can be sorted. Problem number 1: I have a simple while loop, but its only showing 4 results when i know there are 5 I am missing something very simple i know: $sql = ("SELECT * FROM postcode WHERE unid='1'")or die ('<p>There seems to be a problem, please try again soon.</p>'); $result = mysql_query($sql,$con); $row = @mysql_fetch_array($result); $i=0; while ($row = @mysql_fetch_assoc($result)){ echo "newpoints[". $i++ ."] = new Array({$row['lat']}, {$row['long']}, icon0, '{$row['postcodename']}', '{$row['postcodename']}'); \n"; } What am i missing here? Problem number 2: I have a bunch of latitude and longitude codes stored in the database. On each page there will be a varied amount of these codes used, but with a max of 20. I need to find the highest number and the lowest number of each lat and long then come up with a code that is in the middle, the idea of this is to center a map. So for example there will be an array like this: 50.852293 -1.76088 51.252938 -0.76128 51.259583 -0.727168 51.274 -0.837 51.123106 -0.970657 First i need to find the highest number of the first code (51.274) then the lowest number (50.852293) and then the highest number of the second code (-1.76088) then the lowest number (-0.727168) Then work out an inbetween code using the highest and lowest codes for each. Does anyone have a clue how to go about this? I am not the worlds best array technition or mathematician I have a list of IP addresses in an very very very large array in random order. I am trying to find a way to determine if there are at least 8 IP addresses that are consecutive. I was thinking some sort of for loop after a sort but that seems very time consuming and I'm sure PHP has a better way... Some searching online revealed this: http://bytes.com/topic/php/answers/12143-flagging-consecutive-numbers-data-set Is this the way to go? Any tips? Thanks! Carmen Does anyone know a way of to find the 'coordinates' of a deeply nested key in a multidimensional array whilst using array_walk_recursive? I am using array_walk_recursive() to stripslashes() of all values of an array. However I need to be able to get the full coordinates of a key if the said key is of a certain value. The function key() only seems to get the highest level key. As a test I have the following array which has three occurrences of a key named 'date'. Upon each occurrence I want to be able to know exactly where in the array it is so i can call is directly later. <?php $pages = array(array("variation"=>"xccsdc", "items"=>array(array("nm"=>"ss", "type"=>"ta", "kkl"=>"Prodion." ), array("nm"=>"nm", "type"=>"nwsfd", "kkl"=>"nws fd", "nws"=>array(array("date"=>"1328982639", "kkl"=>"f nfgfgnfgn", "title"=>"nfgn fgn fhn " ), array("date"=>"1328982632", "kkl"=>"fgn fgn", "title"=>" fgn" ) ) ), array("nm"=>"nm", "type"=>"nwsfd", "kkl"=>"nws fd", "nws"=>array(array("date"=>"1328982655", "kkl"=>" gh fgh","title"=>"n fgh n" ) ) ) ) ) ); function test_print(&$item, $key, $pages) { if($key == 'date') { //strip the slashes $item = stripslashes($item); //if the key is 'date' which is deeply nested, return the key. echo key(current($pages)); echo '<br/>'; } } array_walk_recursive($pages, 'test_print', $pages); ?> What is returned from the 'test_print' function is: Quote variation variation variation Is this because array_walk_recursive() does not move the internal pointer pointer along? I found this thread on stackoverflow: http://stackoverflow.com/questions/3133054/php-find-key-position-in-multidimensional-array which has a great function for finding the key, however i'm struggling to get my head around how I can apply something like this whilst using array_walk_recursive(). Does anyone have any ideas? I have the following foreach statement that gets the error msg's from the array called errors. However for the last key in the array, i would not like the <br /> to be echo'd out. How can I achieve that? Code: [Select] foreach ($errors as $msg) { echo $msg; echo "<br />"; } Hi, I have an array: Code: [Select] Array ( [0] => index.php [1] => Home [2] => page.php?id=23 [3] => Page ) How would I loop through it so I can link the previous value to the next value within the array e.g.: Code: [Select] <a href="index.php">Home</a> <a href="page.php?id=23">Page</a> Hi guys,
Having trouble trying to show values from my $friend array. Only the first friend code is being displayed in my output.
There are several fields in my mysql associated with the $sql.
Any ideas?
Thanks
$sql = "SELECT * FROM friends WHERE Code = '$code' OR FriendCode = '$code' AND Status ='A'"; $result = mysqli_query($cxn,$sql) or die ("Can't get friends."); $friend = array(); while($row=mysqli_fetch_array($result)) { if($code == $row['FriendCode']) { $friend[] = $row['Code']; } elseif($code == $row['Code']) { $friend[] = $row['FriendCode']; } foreach($friend as $key => $value) { echo $value.'<br />'; } Edited by unistake, 18 June 2014 - 06:13 AM. I got this already, my problem is I can't get all values of my $prog array because of '=>' operator. Is there any way to get rid of this? Code: [Select] foreach ($_POST['course'] as $val =>$course) { $prog = $_POST['program'][$val] ; echo $course; echo $prog; } |