PHP : multiple arrays into html table
Question
I have this code where I want to submit two arrays into a table in html. It works fine until I try and add the other array into the table.
enter image description here this is what it looks like before I add the next array which I want to display in the possible scores column. After I add the new array all of the rows disappear, but I am left with the column headers. I would like to keep the same format of what I have going on so far if possible.
<!DOCTYPE html>
<html>
<body>
<table border="1">
<th></th><th>Student Score</th><th>Possible Score</th><th>Percentage</th>
<?php
//Scores to table
$Scores = fopen("scores.txt", "r");
$Poss = fopen("Poss.txt", "r");
$ind = 0;
while(!feof($Scores)) {
$Scoresarray[$ind] = fgets($Scores);
$ind++;
}
while(!feof($Poss)) {
$Possarray[$ind] = fgets($Poss);
$ind++;
}
fclose($Poss);
fclose($Scores);
if(sizeof($Scoresarray,$Possarray)>1){
$i=1;
while($i<sizeof($Scoresarray,$Possarray)){
echo "<tr>
<td>".$i."</td>
<td>".$Scoresarray[$i-1]."</td>
<td>".$i."</td>
<td>".$Possarray[$i-1]."</td>
</tr>";
$i++;
}
}
?>
</table>
</body>
</html>
1 answers
solution1
0 ACCPTED 2022-09-29 15:38:02
Assuming the 2 arrays are the same length you can do...
All the counters can be removed, they are not needed, the sizeof() will only count one array at a time and is a alias for the count() function anyway so I used count()
If you use a foreach() to get the occurance and the index of an array all in one go like this foreach ($Scoresarray as $i => $score ){ you can traverse one of the arrays and using the index get the corresponding occurance from the other array as well.
$Scores = fopen("scores.txt", "r");
$Poss = fopen("Poss.txt", "r");
while(!feof($Scores)) {
$Scoresarray[] = fgets($Scores);
}
while(!feof($Poss)) {
$Possarray[] = fgets($Poss);
}
fclose($Poss);
fclose($Scores);
if( count($Scoresarray) > 1 && count($Possarray) > 1){
foreach ($Scoresarray as $i => $score ){
echo "<tr>
<td>".$i."</td>
<td>".$score."</td>
<td>".$i."</td>
<td>".$Possarray[$i]."</td>
</tr>";
}
}
Again assuming the files are the same length you could build an Assoc array of the values so the processing of the result becomes even easier
$Scores = fopen("scores.txt", "r");
$Poss = fopen("Poss.txt", "r");
while(!feof($Scores)) {
$scoreAndPos[] = ['score' => fgets($Scores), 'Poss' =>fgets($Poss)];
}
foreach ($scoreAndPos as $i => $sp ){
echo "<tr>
<td>".$i."</td>
<td>".$sp['score']."</td>
<td>".$i."</td>
<td>".$sp['poss']."</td>
</tr>";
}
Or you could use file() which read a whole file into an array of lines.
$Scores = file("scores.txt");
$Poss = file("Poss.txt");
and then use the first foreach loop to process these 2 arrays
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