I have come to this part of script so far:
dif($result>0)
{
$ii=0;
$jj=0;
while (odbc_fetch_row($result))
{
for ($jj = 1; $jj <= odbc_num_fields($result); $jj++)
{
$rr[$ii][$jj]=odbc_result($result,$jj);
if(is_null($rr[$ii][$jj]))
$rr[$ii][$jj] = noData;
echo $rr[$ii][$jj];
echo "<br />";
}
$ii++;
}
}
This works good for creating and populating dynamic tables. But i need also to create dynamic number of single line arrays which consist of column values of arrays i get previously.
Example:
if i get
Array1
2012.01.01 10 20 30
2012.01.02 1 2 3
2012.01.03 11 22 33
i need to convert to
Array2
2012.01.01 2012.01.02 2012.01.03
Array3
10 1 11
Array4
20 2 22
Array5
30 3 33
As i mentioned before the first part of script is needed, so is there a possibility to use result to create single line arrays for further use? I suppose i'm missing something...
What is wrong with a for loop and adding the elements to an array?'
$rr = array(array(1,2,3,4,5),array(6,7,8,9,0),array(11,22,33,44,55));
$result = array();
for($j=0;$j<count($rr[0]);$j++){
$col = array();
for($i=0;$i<count($rr);$i++) {
array_push($col,$rr[$i][$j]);
}
array_push($result,$col);
}
print_r($result);
for a demo see this codepad: http://codepad.org/wgSCtoMV
Related
following is the steps in which i want to do things:
assign a value 1 to $x variable
using for loop increment this value upto 7, so that output is : 1234567
now multiply each value with 7, so that output is : 7 14 21 28 35 42 49.
for this i made the following code, but it does not work.
$yy=1;
for($yy==1; $yy<=8; $yy++){
$yy*7;
}echo $yy;
and i tried the do-while also :
$yy=1;
do{$yy*7;
echo $yy;}
while(
$yy>=7
)
but non is working. i think foreach will work here, not tried yet as i am not on it yet. will it be possible with any of these 2 functions?
You just need for loops:
for($yy = 1; $yy <= 7; $yy++){
echo $yy;
}
echo '<br/>';
for($yy = 1; $yy <= 7; $yy++){
echo $yy*7 .' ';
}
The result will be like this
1234567
7 14 21 28 35 42 49
You got wrong syntax: $yy==1 (comparison operator) on your for looop, initialize $yy=1 (assign operator) then the condition is $yy<=7 not eight
Newbie here, working on their second ever function. I've googles a bit on my problem, looked at PHP.net and at some articles on stack overflow, WC3schools, CoralCode, etc., but i haven't found anything that I can understand as of yet (i've done my diligence before come begging I promise).
The concept of my function is that it will take an array of whatever size, and print it out in rows of four. Function currently returns repeats itself overall equal to the size of the array. So if the array has 8 items, it returns nine groups (groupings defined visually by having the white line between them) of nine items. The first and the last have 16 boxes in them, 2-8 have 32 boxes in them where i was hoping to get back two rows of four with a while line between the two rows
see here for visual error
see here for how it's meant to look
So to sum up, my loop is over iterating/returning too much/not returning the data in the way i hoped. I'm not sure how to phrase the question, but i've done my best to ask it as best I can.
function PrintFolio($aaPlaceholder)
{
//print out two rows of four from array with 8 items
//if array had 7 items, then print row of 4 next row 3
//if array had 16 items, print 4 rows of 4, etc.
$height = sizeof($aaPlaceholder);//get size of array
//loop through array of X items, for each group of 4 print as a row
for($row = 0; $row < $height; $row++) //looping through the rows
{
echo '<div class="row flush">'; //open div
for($image = 0; $image < 4; $image++) //each row is composed of 4 images
{
foreach($aaPlaceholder as $key => $value) {
printf(TEMPLATE_PORTFOLIO, $key, $value);
//replaced $template with constant TEMPLATE_PORTFOLIO!
}
}
echo '</div>'; //end div group of 4
}//end loop
}//end function
If the answer is obvious, please remember i'm very new and it's not obvious to me or honestly I would not be asking.
Thank you for any help or guidance
cheers
First, the height is not the size of the array but it is a fourth of it.
Second, the inner foreach, as already stated in the comments, should not be changed: it should be deleted. You are already looping through your elements, no need to do it once more.
function PrintFolio($aaPlaceholder)
{
//print out two rows of four from array with 8 items
//if array had 7 items, then print row of 4 next row 3
//if array had 16 items, print 4 rows of 4, etc.
$itemsCount = sizeof($aaPlaceholder);//get size of array
$height = (int)ceil(sizeof($aaPlaceholder)/4);//get size of array divided by 4
//loop through array of X items, for each group of 4 print as a row
for($row = 0; $row < $height; $row++) //looping through the rows
{
echo '<div class="row flush">'; //open div
for($image = 0; $image < 4; $image++) //each row is composed of 4 images
{
$aaPlaceholderIndex = $row*4+$image; //the index in the original array
if( $aaPlaceholderIndex < $itemsCount ) {
printf(TEMPLATE_PORTFOLIO, $aaPlaceholderIndex, $aaPlaceholder[$aaPlaceholderIndex]);
}
}
echo '</div>'; //end div group of 4
}//end loop
}//end function
EDIT: this works if your array has plain numeric keys from 0 to n. Otherwise (e.g. associative array) it should read $aaPlaceholderIndex = array_keys($aaPlaceholder)[$row*4+$image];
EDIT AGAIN: so you use associative arrays (key are strings and not integers 0..n). I rushed a bit my edit about this. You'd better:
define $keys = array_keys($aaPlaceholder); outside the loops, where you define $height
define $aaPlaceholderIndex = $keys[$row*4+$image];
move this definition inside the "if" statement, which becomes
if( $row*4+$image < $itemsCount ) {
$aaPlaceholderIndex = $keys[$row*4+$image];
printf(TEMPLATE_PORTFOLIO, $aaPlaceholderIndex, $aaPlaceholder[$aaPlaceholderIndex]);
}
This way you run array_keys just once (good for performance) and you avoid a Notice "Undefined offset" when retrieving $keys[$row*4+$image] when $row*4+$image is too big.
This is probably not the best answer, but this is what I figured out to do.
I created a new variable called 'limit' which is equal to the height var divided by four. I then commented out the second 'for loop' as it was causing problems, leaving only the first for loop and the foreach loop. This gave me back my array as hoped.
Revised code below:
function PrintFolio($aaPlaceholder)
{
//print out two rows of four from array with 8 items
//if array had 7 items, then print row of 4 next row 3
//if array had 16 items, print 4 rows of 4, etc.
$height = sizeof($aaPlaceholder);//get size of array
$limit = $height % 4;
//loop through array of X items, for each group of 4 print as a row
for($row = 0; $row <= $limit; $row++) //looping through the rows
{
echo '<div class="row flush">'; //open div
//for($image = 0; $image < 4; $image++) //each row is composed of 4 images
//{
foreach($aaPlaceholder as $key => $value) {
printf(TEMPLATE_PORTFOLIO, $key, $value);
//replaced $template with constant TEMPLATE_PORTFOLIO!
}
//}
echo '</div>'; //end div group of 4
}//end loop
}//end function
I've got these two functions:
function drawNumber($drawnNumbers){
$unique = true;
while ($unique == true){
$number = mt_rand(10, 69);
if (!in_array($number, $drawnNumbers)){
return $number;
$unique = false;
}
}
}
fillCard(); ?>
It's a bingo game. The card gets filled with random Numbers. But I can't get it like this:
column column column column column column
row 10 13 16 14 16 19
row 24 26 28 29 23 21
row 36 33 39 30 31 35
row 46 48 42 45 43 47
row 59 56 51 52 58 50
row 60 65 68 62 61 67
So I would like to have the first row with numbers from 10 to 19
the second row from 20 to 29 and so on.
I tried like this
<?php drawnNumber(): $number = mt_rand(0,9);
fillArray(): $number = $row . $number; ?>
But that doesn't work, because there are double numbers in the card.
So before that I tried it in a different way,with in_array:
<?php
function fillCard(){
$card = array();
/* fill card with random numbers */
for($i = 0, $min = 10, $max = 19; $i < 6; $i++, $min+=10, $max += 10)
{
for($j = 0; $j < 6; $j++)
{
$number = mt_rand($min,$max) ;
if(!in_array($number, $card){
$card['row' . $i]['column' . $j]['number'] = $number;
$card['row' . $i]['column' . $j]['found'] = 0;
}
}
}
var_dump($card);
return $card;
} ?>
But there are still double random numbers in the card.
I tried a few other thinks in the last two weeks, but I just can't get it to work together.
If one thing succeeds the other thing fails.
I can get the random numbers but not unique random numbers in the card.
I hope someone can help me.
(for extra information: it's a bingo game. So drawnNumber() are the "balls", which get drawn
and stored in the array $drawnNumbers, they also are unique random numbers. fillCard() is the
function that fills the bingo card and checks if $drawNumber is in $card)
I would appreciate some help, if someone can tell me how to get it to work. Maybe in
an algorithm way or else some code?
Thank you in advance.
In general, you draw from some kind of box, right? So do the same, have an array with all available numbers and once you get a random number out of it, remove it, so the next time you search for a number, you will only pick from the remaining ones. Small example:
a[0] = 1
a[1] = 2
a[2] = 3
a[3] = 4
we pick a random number between 0 and 3 inclusive (0 and the length - 1 of a that is). Let's say we picked index 2, then a will look like:
a[0] = 1
a[1] = 2
a[2] = 4
Now if you draw a number between 0 and 2 (note that you take the length - 1 of a!), you won't re-pick the already chosen number in any way thus giving you unique numbers ALL the time.
P.S. this is a simplified version, but now if you can apply that to yourself and, for your example, create several arrays you will pick from.
The simplest way would be to have an additional flat array to keep track, and loop mt_rand
Here's an example of the meat of things:
$drawn = array();
// Loop around until you have a new number in the desired range
do {
$number = mt_rand($min,$max);
} while(in_array($number, $drawn));
// And save it to the $drawn array
$drawn[] = $rand;
To clarify, the above snippet (without the initialization of $drawn) is meant to replace the line
$number = mt_rand($min,$max) ;
in your code.
define('NB_ROWS', 6);
define('NB_COLS', 6);
$rows = range(10, NB_ROWS * 10, 10);
$bingo = array();
foreach($rows as $rowIndex)
{
$availNumbers = range(0, 9);
$line = array();
for($cellIndex = 0; $cellIndex < NB_COLS; $cellIndex++)
{
// pick a random value among remaining ones for current line
$numIndex = rand(0, count($availNumbers)-1);
list($value) = array_splice($availNumbers, $numIndex, 1);
$line[] = $value + $rowIndex;
}
$bingo[] = $line;
}
print_r($bingo);
I tested looping nested While statements so:
$count1 = 0;
while ($count1 < 3) {
$count1++;
$count2 = 0;
echo "count1: ".$count1."<br />";
while ($count2 < 3) {
$count2++;
echo "count2: ".$count2."<br />";
}
}
This works perfectly (looping three times each) with results:
count1: 1
count2: 1
count2: 2
count2: 3
count1: 2
count2: 1
count2: 2
count2: 3
count1: 3
count2: 1
count2: 2
count2: 3
Then I tried the same with a loop using mysql_fetch_assoc ($ContactsInterests is a two row associative array, and $LatestNews has 50 rows) i.e.
$CI_count = 0;
while ($CI_Row = mysql_fetch_assoc($ContactsInterests)) { //loop thru interests
$CI_count++;
$LN_count = 0;
echo "CI_count: ".$CI_count."<br />";
while ($LN_Row = mysql_fetch_assoc($LatestNews)) { //loop thru news
$LN_count++;
echo "LN_count: ".$LN_count."<br />";
}
}
The results are:
CI_count: 1
LN_count: 1
LN_count: 2
...
LN_count: 50
LN_count: 51
CI_count: 2
But where it the second iteration of LN_count? I don't understand why the LN_count didn't increment a second time.
Help appreciated.
mysql_fetch_assoc does iteration for "mysql result" type. Seeks index for each fetch.
you must use mysql_data_seek to go to the first result like;
<?php
$CI_count = 0;
while ($CI_Row = mysql_fetch_assoc($ContactsInterests)) { //loop thru interests
$CI_count++;
$LN_count = 0;
echo "CI_count: ".$CI_count."<br />";
mysql_data_seek($LatestNews,0);
while ($LN_Row = mysql_fetch_assoc($LatestNews)) { //loop thru news
$LN_count++;
echo "LN_count: ".$LN_count."<br />";
}
}
Because the results have been exhausted. You've iterated through all of them... If you wanted to loop again you're have to repopulate the $LatestNews variable.
You need to reset the mysql internal pointer:
see http://php.net/mysql_data_seek
mysql_fetch_assoc() takes out one by one the rows of the source, you when you will be in the second step of the first loop, you wont have any rows in the source variable.
You need to put the results of the second query in an array, then loop the array, and not using mysql_fetch_assoc.
Im trying to loop through a mysql table and check if a row contains the number I specify:
Here is what I have:
mysql table with numbers:
mysql table:
no1|no2|no3|no4|no5
1 3 5 2 6
4 7 8 9 8
2 6 9 1 0
...
For Example: I have number
4 5 3 7
So in the first row i should get a total of 2 as there are numbers 3 and 5 first row and this numbers are in the number I have specified.
In the second row I should get a total of 1 as only a 4 is in the row and the number i have specified.
And in the last row total should be 0 as there are no matches.
I hope its clear.
I have tried the following but it dont work I hope someone can help me work it out thanks in advance.
$lottono1=4;
$lottono2=5;
$lottono3=3;
$lottono4=7;
$no1 = 0;
$no2 = 0;
$no3 = 0;
$no4 = 0;
do { ?>
// i done the following if code for each numbers but
//putting this only to take less space
if (($row_Recordset1['no1']=$lottono1) || ($row_Recordset1['no1']=$lottono2) || ($row_Recordset1['no1']=$lottono3) || ($row_Recordset1['no1']=$lottono4)) {
$no1=1;
}
while ($row_Recordset1 = mysql_fetch_assoc($Recordset1));
select *,
if(no1 in (4,5,3,7),1,0)+
if(no2 in (4,5,3,7),1,0)+
if(no3 in (4,5,3,7),1,0)+
if(no4 in (4,5,3,7),1,0)+
if(no5 in (4,5,3,7),1,0) as found
from table
Well for one, your operators are wrong in your "if" conditions (you're setting rather than comparing).
Regardless i'd do something more like:
$numbers_to_match = array(4,5,3,7) ;
$query = mysql_query("select * from `table` where ____",connection_here);
$matches[] = array();
$i=0;
while($r=mysql_fetch_array($query)){
$matches[$i]=0;
foreach($r as $val){
if (in_array($val,$numbers_to_match)){
$matches[$i]++;
}
}
$i++;
}
print_r($matches);
Untested, but this should give you an array that lists the number of matches for each row
To accomplish with PHP/MySQL you can do the following:
$query = 'SELECT * FROM table';
$result = mysql_query($query) or die();
$matchValues = array(4,5,3,7);
while($row = mysql_fetch_array($result)){
$counter = 0;
foreach($matchValues as $value)
{
if(in_array($value, $row))
{
$counter++;
}
}
print "Searched row and found $counter matches<br/>";
}