how to rebuild PHP 2 dimentional array?
i have 2 dimentional array like this:
$day_array = [[1,2,3,4,5],[1,2,3,4,5],[1,2,3,4,5],[1,2,3,开发者_JAVA百科4,5]];
and i want to rebuild like this
$day_array = [[1,1,1,1][2,2,2,2][3,3,3,3][4,4,4,4,4][5,5,5,5]];
Any ideas on how to do this?
Thanks in advance...
$day_array = array(array(1,2,3,4,5),array(1,2,3,4,5),array(1,2,3,4,5),array(1,2,3,4,5));
$output = array();
for ( $y = 0; $y < count($day_array[0]); $y++ ) {
for ( $x = 0; $x < count($day_array); $x++ ) {
$output[$y][] = $day_array[$x][$y];
}
}
print_r($output);
Version which outputs a string:
$data = '[';
for ( $y = 0; $y < count($day_array[0]); $y++ ) {
$data .= '[';
$output = array();
for ( $x = 0; $x < count($day_array); $x++ ) {
$output[] = $day_array[$x][$y];
}
$data .= implode(',', $output) . ']';
}
$data .= ']';
echo $data;
Why do you want the result as an array? You are actually trying to extract the information: How many of each value do I have? You can use the value as array key to achive that:
$result = array();
foreach ($day_array as $innerArray) {
foreach ($innerArray as $value) {
if (!isset($result[$value])) {
$result[$value] = 0;
}
$result[$value]++;
}
}
var_dump($result);
# Will output:
# array(5):
# 1 => 4,
# 2 => 4,
# 3 => 4,
# 4 => 4,
# 5 => 4
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