Php pushing values to a 2-dimensional array - php

Question

i've a 2-dimensional array and i want to push values to it with a while loop like;
$arr[0][1] = 1. value
$arr[0][2] = 2. value
i ve tried
while($zRow = mysql_fetch_array($zQuery))
{
$props[]['name'] =$zRow['name'];
$props[]['photo'] =$zRow['thumbnail'];
}
this loop pushes name to $props[0][name] and thumbnail to $props[1][photo]
i also tried
$j = 0;
while($zRow = mysql_fetch_array($zQuery))
{
$props[$j]['name'] =$zRow['name'];
$props[$j]['photo'] =$zRow['thumbnail'];
$j+=1;
}
that works but with this i when i use foreach loop later, it makes trouble like "Illegal offset type"
and here is my foreach loop
foreach($props as $no)
{
echo $props[$no]['name'];
}
now my questions;
1) are there any other way than while loop with $j variable like array_push for 2-dimensional arrays
2)how can i use foreach loop for 2-dimensional arrays

Answer 1

You could change the first loop to the following:
while($zRow = mysql_fetch_array($zQuery))
{
$row = array();
$row['name'] = $zRow['name'];
$row['photo'] = $zRow['thumbnail'];
$props[] = $row;
}
Your method also works, but you need that extra variable.
In your second loop, what you actually need to be doing is:
foreach($props as $index => $array)
{
echo $props[$index]['name'];
// OR
echo $array['name'];
}

Answer 2

Pushing anything onto an array with $myArray[] = 'foo' will increment the array's counter.
For multidimensional array, you need to populate the "inner" array, then push it to the "outer" (in your case $props) array.
while($zRow = mysql_fetch_array($zQuery)) {
$data = array('name' => $zRow['name'], 'photo' => $zRow['thumbnail']);
$props[] = $data;
}
To iterate over multidimensional arrays whose depth is known:
foreach ($props as $prop) {
foreach ($prop as $key => $value) {
echo "{$key} => {$value}" . PHP_EOL;
}
}
If the depth of the nesting is not known, you may have to use a recursive function to gather the data.