How would I input the same randomized values 27 times into that array $data?
It outputs a correctly formatted table with one row of randomized values, now just need to redo these values 27 times.
The array is two dimensional would that makes things harder?
Any and all help is appreciated very much I am just a beginner.
<html>
<STYLE type="text/css">
td{
border-left: 1px solid #f09d09;
}
th{
border: 1px solid #f09d09;
}
</STYLE>
<body>
<table>
<tr>
<th>Number</th>
<th>Student Number</th>
<th>Coursework Mark</th>
<th>Exam Mark</th>
<th>Module Mark</th>
<th>Module Result</th>
<th>Comments</th>
</tr>
<?php
$examPassmark = 40; //Hardcoded exam pass mark
$courseworkPassmark = 40; // Hardcoded coursework passmark
$n = rand(1,27);
$sn = "B00" . rand(200000,599999); //randomised student number with the prefix B00 e.g B00-299999
$cwm = rand(25,100); //randomised coursework mark
$em = rand(25,100); // randomised exam mark
$mm = round(((($cwm / 200) * 20) + (($em / 200) * 80) * 2)) ; //exam weighting is cw/e = 20/80
$mr = 'Fail';
$stack = array("");
if($em > $examPassmark && $cwm > $courseworkPassmark) //This if statement states that ONLY if both Coursework and the exam are passed will a student pass the module
{
$mr = 'Pass';
}else{
$mr = 'Fail';
}
if($cwm < $courseworkPassmark) //Checks to see if the student passed coursework
{
$com = 'Resit CourseWork';
}
else if($em < $examPassmark) // Checks to see if the student passed the exam
{
$com = 'Resit Exam';
}else{
$com = 'None'; //outputted if both are passed
}
for($i = 0; $i <= 27; $i++)
{
$data = array( array($n, $sn, $cwm, $em, $mm, $mr, $com) //Here we have an two dimensional array that will be filled with the values created above
);
$data[$i] .= $stack;
}
for ($row = 0; $row < 27; $row++) //rows (I use 8 to give each column padding so it isnt squeezed together)
{
for ($col = 0; $col < 7; $col++) //columns output to the number of entries in the array $data
{
echo "<td>".$data[$row][$col]."</td>"; //within each column print out the value held within $data
}
}
echo '</table>'; //end the table
?>
</body>
You were almost there.. with a few modifications to your code, you can get the data correctly into the array, and print it... I'm going to add comments to the modified code, so you can see what I changed, and why.
for($i = 0; $i <= 27; $i++)
{
$data[] = array($n, $sn, $cwm, $em, $mm, $mr, $com, $stack);
// There is no need to use $i in the array assignment here, the array inserts already start at zero
// On top of that, there is no need to have a 3 dimensional array, if you're trying to
// Get the values to correctly print into a table.
// Lastly, you can simply add $stack to the array, rather than having to add it on with another line.
}
for ($row = 0; $row < 27; $row++)
{
echo "<tr>"; // This needs to exist, of course, in order to separate the rows
for ($col = 0; $col < 7; $col++) //columns output to the number of entries in the array $data
{
echo "<td>".$data[$row][$col]."</td>";
// Otherwise, your code here is fine.
}
echo "</tr>"; // see above
}
Related
<?php
?>
<html>
<head>
<style>
table {
font-family: arial, sans-serif;
border-collapse: collapse;
width: 100%;
}
td, th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
tr:nth-child(even) {
background-color: #dddddd;
}
</style>
</head>
<body>
<table>
<thead>
<tr>
<th>
</th>
<?php
for($i = 1; $i <=31;$i++){
echo '<th>'.$i.'</th>';
}
?>
</tr>
</thead>
<tbody>
<td>
Item A
</td>
<?php
$qty_n_day = '1/2,3/6';
$qty_day = explode(',', $qty_n_day);
foreach ($qty_day as $qd) {
list($qty,$day) = explode('/', $qd);
for($i = 1; $i <=31;$i++){
if($day == $i)
echo '<td>'.$qty.'</td>';
else
echo '<td>-</td>';
}
}
?>
</tbody>
</table>
</body>
</html>
Output result
My expected result
The 31 column indicate as days.
I stored quantity and days together, and then extract it after into
a list.
After that, i want to compare it with day column and show qty value
for the column.
How can i do that? Is my logic wrong?
Try this way, creating an associative array first with the day and value:
<?php
$qty_n_day = '1/2,3/6';
$qty_day = explode(',', $qty_n_day);
$days = [];
foreach ($qty_day as $day) {
if (($res = explode('/', $day))) {
$days[$res[1]] = $res[0];
}
}
/*
the array should stay like this
$days = [
2 => 1,
6 => 3
];
*/
for($i = 1; $i<=31;$i++){
if (isset($days[$i])) { // if the key exists set the value
echo '<td>' . $days[$i] . '</td>';
} else {
echo '<td>-</td>';
}
}
?>
You have to change the order of your loops:
Your foreach loop loops through the quantities and contains the for loop, that loops through the days. This leads to the behavior, that the for loop runs completely through for each quantity, therefore echoing 31 days.
This means that for 2 quantities 62 days are printed.
You need to flip the loops and add a conditional output to them:
for ($i = 1; $i <= 31; $i++) {
$quantity = '-';
foreach ($qty_day as $qd) {
list($qty,$day) = explode('/', $qd);
if ($day == $i) {
$quantity = $qty;
break;
}
}
echo '<td>' . $quantity . '</td>';
}
The problem arises from the fact that you are performing two iterations, the first one processing 2 cycles and the second one processing 31 cycles... for a total of 62 elements being generated.
I propose you a much more compact solution, that builds up the final array first and then simply prints it:
<?php
$arr = array_fill(1, 31, "-");
$qty_n_day = '1/2,3/6';
$qty_day = explode(',', $qty_n_day);
foreach ($qty_day as $qd)
{
list($qty,$day) = explode('/', $qd);
$arr[$day] = $qty;
}
for ($i = 1; $i <= 31; ++$i)
{
echo '<td>'.$arr[$i].'</td>';
}
?>
Im creating tablerows based on the number of the array colours:
$query = mysql_query("SELECT * FROM things);
$num = mysql_num_rows($query );
$colours = array ();
if($num)
{
for ($i = 0; ($row = mysql_fetch_assoc($query)); ++$i)
{
$colours[$i] = $row["colours"];
}
}
$arrlength = count($colours);
for ($i = 0; ($i < ($arrlength)); ++$i){
echo "
<tr class='border_bottom'><td>".$colours[$i]."</td></tr>
";
}
So, if colours is, lets say, equal to 8, 8 table rows with the class border_bottom are created.
border_bottom is used by CSS to add a border to the bottom of each tablerow.
What I need is some PHP help: I need code which checks the array colours. The last element of the array has to go with an empty id since I dont want a border-bottom added to that very last tablerow. All other tablerows have to go with the border_bottom class, tho.
I was thinking of starting the code like that:
echo"
<tr class='
";
-->PHP code goes here<--
echo"
'>
<td>".$colours[$i]."</td></tr>
Try this:
<?php
$query = mysql_query("SELECT * FROM things");
$num = mysql_num_rows($query);
$colours = array();
if($num)
{
while($row = mysql_fetch_assoc($query))
{
$colours[] = $row["colours"];
}
}
$arrlength = count($colours);
for ($i = 0; $i < $arrlength; ++$i){
if($i < $arrlength - 1){
echo "<tr class='border_bottom'><td>{$colours[$i]}</td></tr>";
}else{
echo "<tr><td>{$someColor}</td></tr>";
}
}
Try the following code in your table row echo
echo "<tr"
.($i < $arrlength - 1 ? " class='border_bottom'" : "")
.">"
."<td>{$colours[$i]}</td></tr>";
You can actually do this while fetching the rows without needing to count how many there are, by reading ahead one row.
$previous_row = mysql_fetch_array(); // fetch the first row (if there is one)
while ($previous_row) {
if ($row = mysql_fetch_array()) {
// if another row is fetched, then the previous row was NOT the last row
echo '<tr class="border_bottom"><td>' . $previous_row['colours'] . '</td></tr>';
} else {
// otherwise, the previous row WAS the last row, and does not get the class
echo '<tr><td>' . $previous_row['colours'] . '</td></tr>';
}
$previous_row = $row; // Set the previous row to the current row
}
I'm trying to make a wordsearch game using php. First I will create the table/grid and then populate the table with random letters and then I will replace the random letters with the letters of the words as well as determining the direction of the words either HORIZONTAL, VERTICAL or DIAGONAL. The problem is, the letters of words intersect with each other, which messed up the table. The questions are,
How to set condition where in letters of words will not intersect with each other
How to determine if the current position is already occupied by the other words letter?
I'm having problem with the letters of words they keep intersecting with each other.
Any idea?
$row = 5;
$col = 5;
$characters = range('a','z');
$max = count($characters) - 1;
$rc = array();
for ($r=1;$r<=$row;$r++)
{
for ($c=1;$c<=$col;$c++)
{
$rc['r'.$r.'c'.$c] = $characters[mt_rand(0,$max)];
$fill['r'.$r.'c'.$c] = '';
}
}
$directions = array('H', 'V', 'D');
$wrdList =array('four', 'data', 'howl');
foreach ($wrdList as $wrd)
{
$wrdLen = strlen($wrd);
$dir = $directions[mt_rand(0,2)];
if ($dir =="H" or $dir=="D" )
{
$limitRow = $row - $wrdLen+1;
$limitCol = $col - $wrdLen+1;
$startPointRow = 1;
$startPointCol = 1;
}
elseif ($dir=="V")
{
$limitRow = $row - $wrdLen + 1;
$limitCol = $col;
$startPointRow = 1;
$startPointCol = 1;
}
$temprow = mt_rand($startPointRow,$limitRow);
$tempcol = mt_rand($startPointCol,$limitCol);
while($wrdLen >0)
{
$thisChar= substr($wrd,0,1);
$wrd = substr($wrd,1);
$wrdLen--;
$x = 'r'.$temprow.'c'.$tempcol;
$rc[$x] = $thisChar;
$fill[$x] = '#2952f8';
if($dir=="D")
{
$tempcol++;
$temprow++;
}
elseif($dir=="V")
{
$temprow++;
}
elseif($dir=="H")
{
$tempcol++;
}
}
}
#--Display the random letters and the words
echo '<table style="border:1px solid #000">';
for ($r=1;$r<=$row;$r++)
{
echo '<tr style="border:1px solid #000">';
for ($c=1;$c<=$col;$c++)
{
$thisChar=$rc['r'.$r.'c'.$c];
$fills = $fill['r'.$r.'c'.$c];
echo '<td style="border:1px solid #000; background-color: '.$fills.'">';
echo $thisChar;
echo '</td>';
}
echo '</tr>';
}
echo '</table>';
?>
You're doing it backwards. First put in the words you want, then put in the random letters.
Before you put in each successive word, choose the random path for that word, and then along that path, check that there aren't any non-matching letters. (E.g. if 'alphabet' crosses the word 'graph' in a place where they both have a letter 'a', it's okay; otherwise, find a different spot for 'alphabet'). Finally, after all the words are in place, go through the whole thing and put random letters in the spots that don't have letters. Or, if you can't find a place for all the words, start over again.
EDIT:
How to find letters in particular spots. Okay. So, taking a look at your code, you are doing something illogical here:
$rc['r'.$r.'c'.$c] = $characters[mt_rand(0,$max)];
You are creating a one-dimensional array out of, essentially, the product of two keys. Instead, you want to do a two-dimensional array. This makes complete sense because a) you have two keys, and b) word searches have two dimensions.
$rc[$r][$c] = $characters[mt_rand(0,$max)];
So, let's start at the beginning with everything rearranged. Please note that I have rewritten things to start your row/column count at 0 instead of 1 because that's the programming convention for arrays, and I'm not going to try to bend my brain around counting from 1 just for this.
$wrdList =array('four', 'banana', 'howl');
$row = 5; //six rows counting from 0
$col = 5; //six columns counting from 0
$rc = array(); //our tableau array
$directions = array('H', 'V', 'D');
foreach ($wrdList as $wrd)
{
$found = false; // by default, no spot has been found
$tries = $row*$col; // we will try a reasonable number of times to find a spot
while(!$found && $tries > 0) {
$wrdLen = strlen($wrd);
$dir = $directions[mt_rand(0,2)];
if ($dir =="H")
{
$limitRow = $row;
$limitCol = $col - ($wrdLen - 1);
}
elseif($dir=="D")
{
$limitRow = $row - ($wrdLen - 1);
$limitCol = $col - ($wrdLen - 1);
}
elseif ($dir=="V")
{
$limitRow = $row - ($wrdLen - 1);
$limitCol = $col;
}
$temprow = mt_rand(0,$limitRow);
$tempcol = mt_rand(0,$limitCol);
//this is my temporary placement array
$placement = array();
//let's use for loop so we can capitalize on having numeric keys
$r = $temprow;
$c = $tempcol;
for($w = 0; $w < $wrdLen; $w++) {
$thisChar = $wrd{$w};
//find array keys
if($dir == 'V' || $dir == 'D') {
$r = $temprow + $w;
}
if($dir == 'H' || $dir == 'D') {
$c = $tempcol + $w;
}
//look at the current tableau
if(isset($rc[$r][$c])) { //the intended spot has a letter
if($rc[$r][$c] == $thisChar) { //the intended spot's letter is the same
$placement[$r][$c] = $thisChar;
if($w == $wrdLen-1) { // this is the last letter
$found = true; // we have found a path
}
} else {
break; //this path doesn't work
}
} else {
$placement[$r][$c] = $thisChar;
if($w == $wrdLen-1) { // this is the last letter
$found = true; // we have found a path
}
}
}
if($found) {
//put the letters out of the temporary array and into the tableau
foreach($placement as $r=>$set) {
foreach($set as $c=>$letter) {
$rc[$r][$c] = $letter;
}
}
}
$tries--;
}
//handle the error where no spot was found for the word
if(!$found) {
//your error handling here
}
}
//random fillers
$characters = range('a','z');
$max = count($characters) - 1;
for($r = 0; $r <= $row; $r++) {
for($c = 0; $c <= $col; $c++) {
if(!isset($rc[$r][$c])) {
$rc[$r][$c] = $characters[mt_rand(0,$max)];
}
}
}
When I launch my web page, increment doesn't work correctly!
It should go like this: $i = from 1 to x (0,1,2,3,4,5,6 etc..).
But instead it jumps over every step giving result of (1,3,5,7 etc..).
Why is this code doing this?
<ul class="about">
<?php
$result = mysql_query("SELECT * FROM info WHERE id = 1");
while ($row = mysql_fetch_assoc($result))
{
$bioText = $row['bio'];
}
$endBioTxt = explode("\n", $bioText);
for ($i=0; $i < count($endBioTxt);)
{
if (checkNum($i) == true)
{
echo "<li class='left'><div>".$endBioTxt[$i]."</div></li>";
echo $i;
}
else
{
echo "<li class='right'><div>".$endBioTxt[$i]."</div></li>";
echo $i;
}
$i++;
}
// Function to check if number is prime
function checkNum($num){
return ($num % 2) ? TRUE : FALSE;
}
?>
</ul>
Output:
Sometext!(right side)
0
1
Sometext2!(right side)
2
3
...
Please DONT do this as other suggested:
for ($i=0; $i < count($endBioTxt); $i++)
do this:
$count = count($endBioTxt);
for ($i=0; $i < $count; $i++) {
}
No need to calculate the count every iteration.
Nacereddine was correct though about the fact that you don't need to do:
$i++;
inside your loop since the preferred (correct?) syntax is doing it in your loop call.
EDIT
You code just looks 'strange' to me.
Why are you doing:
while ($row = mysql_fetch_assoc($result))
{
$bioText = $row['bio'];
}
???
That would just set $bioText with the last record (bio value) in the recordset.
EDIT 2
Also I don't think you really need a function to calculate the modulo of a number.
EDIT 3
If I understand your answer correctly you want 0 to be in the left li and 1 in the right li 2 in the left again and so on.
This should do it:
$endBioTxt = explode("\n", $bioText);
$i = 0;
foreach ($endBioTxt as $txt)
{
$class = 'left';
if ($i%2 == 1) {
$class = 'right';
}
echo '<li class="'.$class.'"><div>'.$txt.'</div></li>';
echo $i; // no idea why you want to do this since it would be invalid html
$i++;
}
Your for statement should be:
for ($i=0; $i < count($endBioTxt); $i++)
see http://us.php.net/manual/en/control-structures.for.php
$i++; You don't need this line inside a for loop, it's withing the for loop declaration that you should put it.
for ($i=0; $i < count($endBioTxt);$i++)
{
if (checkNum($i) == true)
{
echo "<li class='left'><div>".$endBioTxt[$i]."</div></li>";
echo $i;
}
else
{
echo "<li class='right'><div>".$endBioTxt[$i]."</div></li>";
echo $i;
}
//$i++; You don't need this line inside a for loop otherwise $i will be incremented twice
}
Edit: Unrelated but this isn't how you check whether a number is prime or not
// Function to check if number is prime
function checkNum($num){
return ($num % 2) ? TRUE : FALSE;
}
This code works, please test it in your environment and then uncomment/comment what you need.
<?php
// This is how query should look like, not big fan of PHP but as far as I remember...
/*
$result = mysql_query("SELECT * FROM info WHERE id = 1");
$row = mysql_fetch_assoc($result);
$bioText = $row['bio'];
$endBioTxt = explode("\n", $bioText);
*/
$endBioTxt[0] = "one";
$endBioTxt[1] = "two";
$endBioTxt[2] = "three";
$endBioTxt[3] = "four";
$endBioTxt[4] = "five";
$totalElements = count($endBioTxt);
for ($i = 0; $i < $totalElements; $i++)
{
if ($i % 2)
{
echo "<li class='left'><div>".$endBioTxt[$i]."</div></li>";
}
else
{
echo "<li class='right'><div>".$endBioTxt[$i]."</div></li>";
}
/*
// This is how you should test if all your array elements are set
if (isset($endBioTxt[$i]) == false)
{
echo "Array has some values that are not set...";
}
*/
}
Edit 1
Try using $endBioTxt = preg_split('/$\R?^/m', $bioTxt); instead of explode.
I'm working on a printing a baseball team lineup, via php. I want to print a place holder for a missing Player 6 (or any missing position)
So if Player 1 -> Player 5 is OK print, NO Player #6 print place holder, Player 7 -> Player 9 is OK print. I tried to simplify the code. I have tried solving this every which way but I keep getting stuck.
CODE:
$rot = array();
$pos = array();
$jn = array();
$x = 1;
// loads up the arrays from the db
while ( $rot[$x], $pos[$x], $jn[$x])= $r->fetch_row() ) {
$x++;
}
// counts the actual number of players in linuep
// used for validation and error display
$num_players = mysqli_num_rows($r);
// controls the lineup position
for ($i = 1; $i <= 15; $i++){
if($rot[$i] == $i) {
//prints player
$lineup .= "<div data-fp='" . $pos[$i] . "'>" .$jn[$i]. "</div>";
} else {
// prints place holder
$text = "This Position needs to be filled before the next game.";
$lineup .= "<div id='pid' data-rel='".$text."' data-fp='' data-pid='' data-jn='' title=''>x</div>";
}
}
I also tried this to iterate through the array rot[] to find the matching position and print the line but it actually prints the holder repeatedly.
// controls the lineup position
for ($x = 1; $x <= 15; $x++){
for ($i = 1; $i <= ($num_players+1); $i++) {
if ($x == $i) {
//prints player
$lineup .= "<div data-fp='" . $pos[$i] . "'>" .$jn[$i]. "</div>";
} else {
// prints place holder
$text = "This Position needs to be filled before the next game.";
$lineup .= "<div id='pid' data-rel='".$text."' data-fp='' data-pid='' data-jn='' title=''>x</div>";
}
}
}
What about:
# index all players by position while taking them from the database
$players = array();
while ( $row = $r->fetch_row() ) {
list($rot, $pos, $jn) = $row;
$players[$pos] = compact(array('rot', $pos, $jn);
}
...
# line-up players
for ($pos = 1; $pos <= 15; $pos++)
{
$playerExists = isset($players[$pos]);
if ($playerExists)
{
# do this ...
}
else
{
# do that ...
}
}
I think you are creating an array where all numerical elements are filled (i.e. you'll always have a 1 thru 15) and your mistake is in the
if($rot[$i] == $i) {
When populating the arrays from the database, add this line:
$playertoid = array_flip($pos); # pos is the player number array?
i.e.
while ( ($rot[$x], $pos[$x], $jn[$x])= $r->fetch_row() ) {
$x++;
}
$playertoid = array_flip($pos);
Now you've created a reverse lookup table where the index is the player number.
Replace the
if($rot[$i] == $i) {
line with:
if (isset($playertoid[$i])) {