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Hello! I'm starting to learn php and for practice I tried to resolve a simple exercise. the idea is to write a php function that inputs a tabe and returns +1 if positive numbers in the table are more than the negative ones. and return -1 if negative numbers in the table are more than the positive ones. 0 if they are equal. this is my code for the function starting from line 8 function plusmin ($tab) { $n = count($tab); $plus = 0; $min = 0; for ($i = 0; $i <= $n; $i++) { if ($tab[$i] > 0){ $plus++; } elseif ($tab[$i] < 0){ $min++; } } if ($plus > $min) { $result = "+1"; } elseif ($plus < $min) { $result = "-1"; } elseif ($plus == $min){ $result = "0"; } return $result; } and just to test it I created a table manually $tab[0] = 1; $tab[1] = -5; $tab[2] = -4; $tab[3] = 7; $tab[4] = -8; $tab[5] = -3; $tab[6] = 2; $tab[7] = 0; $tab[8] = -6; $tab[9] = -9; $k = plusmin($tab); echo $k; when I execute it It works, it shows for the case -1 but the browser shows this error Notice: Undefined offset: 10 in C:\Users\ahmed\PhpstormProjects\Exam 2013\tab.php on line 13 line 13 is this one if ($tab[$i] > 0){ Notice: Undefined offset: 10 in C:\Users\ahmed\PhpstormProjects\Exam 2013\tab.php on line 16 line 16 is this one elseif ($tab[$i] < 0){ I dunno what's the problem. and I know it will turn out to be a stupid problem but hey that's how we all learn. could anyone help? Thanks in advance

I have divs which can be clicked and then another div will pop out with few colors for users to choose. After choosing the colors in the div that pop out the div that is clicked will change into that background. I used class to determain which div is clicked. function works fine but I realized when I try console.log the class I used as global to findout which div to change the background. the console.log keeps adding up also multiplying too. Can I have a pair of eye to see where it's adding things up? var colorHolder = null; //used to store the location where color is picked function colorFieldPicker(onClickSide, xValInput, yValInput,side){ onClickSide.on('click', function(event){ colorHolder = $(this).attr('class'); var yVal = (event.pageY - yValInput) + "px"; var xVal = (event.pageX / xValInput) + "px"; $('.colorSelectBox').css({"left": xVal, "top": yVal}).toggle(); colorPickerOnClick(side); }); } function colorPickerOnClick(side){ $('div.black').add('div.yellow').on('click', function(){ var colorAttr = $(this).attr('value'); var splitClass = colorHolder.split(" "); side.closest('div').find('.'+splitClass[0] + '.'+splitClass[1]).css({"background": colorAttr}).attr('value', colorAttr); console.log(colorHolder); //this is where it's displaying in console that it'll keep on adding up. $('.colorSelectBox').css({"display": "none"}); }); } Thanks everyone in advance.

Hi, I've inherited some code on a system from another person. I'll be the first to admit that I'm not a PHP pro, I am self taught, and use it sparingly for personal projects mainly. So this is a bit beyond my skill level, and I was hoping for some advice: The system is a glorified calendar, with a lot of our own data being slapped on top of it and presented nicely. The issue I have thoguh is that due to the way the calendar is generated, I cant make the height of the days move dynamically based on what content gets dropped into each day on the calendar. If one day is busy and has 8 events drop into it, they will overflow the days cell. I wanted to adjust the height of ALL cells on a month view calendar to the heighest required height of all cells in that view. What I was going to do, is +1 to a coutner for every event (or block) that is generated for each day (days are looped through a private function), and commit that number to an array. At the end fo the loop (after all days ahve been counted and have a value in the array), I was going to use max() on the array, pull the largest number, calculate the days cell hiehgt from that and apply it via CSS at page level. I've summarised the code in effect here (psuedo code, not real PHP): class Calendar { public $heights; private fucntion dayLoop($cellNumber) { $heights = []; //array $block_count = 0; //counter while(mysqlrowdata) { [code for mysql operations] $block_count++; //increment the count } $day_height = ($block_count * 16) + 18; //do some math specific to my application $this->heights[] = $day_height; //commit calc'd value to array //array_push($heights, $day_height); //this was a previosu attempt, i dont think i should use array_push here..?? } } That function, and others is called from the front end pages to generate the calendar. If I do a: var_dump($heights); after it on that page, all I get returned on screen is "Array ( )" I tried changing the private function to a public one, but this did not affect the outcome. Anyone have any ideas on what I'm doing wrong? Is my logic sound? Can I commit values to an array inside a loop in a public OR private function and then reference that array outside of the loop? I defined $heights as public in the class too, but that didnt change the outcome either. Thanks.

I have this html to let people select how how many color div wants to have from 1-3 <div class="color-side-a"> <p class="sideABCD-header">Side A</p> <div class="dimension-width"> <p class="dimension-WHC">Colors</p> <select name="number-of-colors" class="number-of-colors"> <option value="" group="1">Select A Number</option> <option value="1" group="1">1</option> <option value="2" group="1">2</option> <option value="3" group="1">3</option> </select> <div class="number-of-color-field"> <div name="color1" class="sideA color1"></div> <div name="color2" class="sideA color2"></div> <div name="color3" class="sideA color3"></div> </div> </div> </div><!-- end side A --> <div class="color-side-b"> <p class="sideABCD-header">Side B</p> <div class="dimension-width"> <p class="dimension-WHC">Colors</p> <select name="number-of-colors" class="number-of-colors"> <option value="" group="colors">Select A Number</option> <option value="1" group="colors">1</option> <option value="2" group="colors">2</option> <option value="3" group="colors">3</option> </select> <div class="number-of-color-field"> <div name="color1" class="sideB color1"></div> <div name="color2" class="sideB color2"></div> <div name="color3" class="sideB color3"></div> </div> </div> </div><!-- end side B --> I have this jquery to show /hide depend on the value chosen which is really just depend on value then show() /hide() the other divs which I didn't show since it's just simple something like value == 1, color1.show() color2.hide() and so on I have this function which then lets people pick the color they wanted in the selectColorBox div I know this code is duplicating but I tried a few ways and not sure how I can combine them in order to reuse most of the codes and if I have side C D E F G I wouldn't need to just copy and paste my codes var colorHolder = null; //used to store the location where color is picked <div class="color-side-a"> <p class="sideABCD-header">Side A</p> <div class="dimension-width"> <p class="dimension-WHC">Colors</p> <select name="number-of-colors" class="number-of-colors"> <option value="" group="1">Select A Number</option> <option value="1" group="1">1</option> <option value="2" group="1">2</option> <option value="3" group="1">3</option> </select> <div class="number-of-color-field"> <div name="color1" class="sideA color1"></div> <div name="color2" class="sideA color2"></div> <div name="color3" class="sideA color3"></div> </div> </div> </div><!-- end side A --> <div class="color-side-b"> <p class="sideABCD-header">Side B</p> <div class="dimension-width"> <p class="dimension-WHC">Colors</p> <select name="number-of-colors" class="number-of-colors"> <option value="" group="colors">Select A Number</option> <option value="1" group="colors">1</option> <option value="2" group="colors">2</option> <option value="3" group="colors">3</option> </select> <div class="number-of-color-field"> <div name="color1" class="sideB color1"></div> <div name="color2" class="sideB color2"></div> <div name="color3" class="sideB color3"></div> </div> </div> </div><!-- end side B --> this is my simple div box for user to pick colors <div class="colorSelectBox"> <div>Special</div> <div> <div class="pink" value="pink"></div> <div class="black" value="black"></div> <div class="yellow" value="yellow"></div> </div> <div class="clear"></div> <div>Original</div> <div> <div class="red"></div> <div class="blue"></div> <div class="grey"></div> <div class="green"></div> <div class="white"></div> </div> </div> how can I combine those two duplicated jquery into one function that I can further use more later if needed?

up votedown votefavorite I've been scraching my head for hours over this problem. I'm basically trying to fetch values from a loop inside a function to pass it to another foreach loop to get the desired results. And it is not working as I intend to. please, point me in the right direction. Here is the code: function ff($s) { $project=""; foreach ($s as $i=> $r ){ $r["friend_one"] == $_SESSION['uname'] ? $friends[]= $r["friend_two"] : $friends[] = $r["friend_one"]; $friend=$friends[$i]; $totalids=$project->totalids($_SESSION['uname'],$friend); } return $totalids; } $totalid= ff($f); print_r($totalid); foreach ($totalid as $v){ $id=$v['user_id']; //other logic to get desired result }

Hi all, I am trying to pass 4 variables from one php page to another php page containing a google maps api. The variables I am passing are geo coordinates. at the end I want to show the map on my php page however I am struggling with linking php and javascipt together. This is what I have so far: external function page: http://pastebin.com/NAKHmKxW [PART OF MAIN PHP PAGE] <div class="row"> <?php include_once("function_maps.php"); initMap($latitude, $longitude,$row['Latitude'],$row['Longitude']); ?> </div>

Say I have this records table. RECORDS TABLE record_id | sponsor_id | user_id | plan_id ------------------------------------------------------------------------------ 1 user5 user6 5 // I am this user. 2 user3 user5 3 3 user3 user4 4 4 user2 user3 4 5 user2 user2 2 6 user0 user1 5 I am "user6" and my sponsor is "user5". What I want to do is find the same "plan_id" from my sponsors, no matter how far up I have to do. For eg. My current plan id is "5". My sponsor is "user5". If I look for "user5" in the user_id column, I would find that he only has plan "3" id. So I go to his sponsor, which is "user3" and find him in the user_id column. That user's plan id is "4" so it does not match my plan id either. I repeat the same process by going to his sponsor and his sponsor and so on until I find the plan id that matches me. So for this table example, that would be "user1". I only want to retrieve the first result that matches my plan id. How do I go on about coding this function? Normally I can do these queries to go up limited amount. But I am looking for a more proper function that lets me search my sponsors unlimited times. $find_plan_id = $db->prepare("SELECT sponsor_id, plan_id FROM records WHERE user_id = :user_id"); $find_plan_id->bindParam(':user_id', $user_id); $find_plan_id->execute(); $result_find_plan_id = $find_plan_id->fetchAll(PDO::FETCH_ASSOC); if(count($result_plan_id) > 0) { foreach($result_plan_id as $row) { $get_sponsor_id_1 = $row['sponsor_id']; $get_plan_id_1 = $row['plan_id']; } if($get_plan_id_1 == $my_plan_id) { echo 'Plan id matches.'; } else { $find_plan_id_2 = $db->prepare("SELECT sponsor_id, plan_id FROM records WHERE user_id = :user_id"); $find_plan_id_2->bindParam(':user_id', $get_sponsor_id_1); $find_plan_id_2->execute(); $result_plan_id_2 = $find_plan_id_2->fetchAll(PDO::FETCH_ASSOC); if(count($result_plan_id_2) > 0) { foreach($result_plan_id_2 as $row) { $get_sponsor_id_2 = $row['sponsor_id']; $get_plan_id_2 = $row['plan_id']; } if($get_plan_id_2 == $my_plan_id) { echo 'Plan id matches.'; } else { // repeat the process } } } }