I have a table
Which I want show recursively like below picture
I am using a recursive function in php
function reccall($cat_id)
{
global $no,$recArray;
$sql = "SELECT a.*
FROM cat_master
WHERE
parent_id = $cat_id
ORDER BY
id ASC
";
$result = mysql_query($sql) or die("Could not fetech Recursively");
while($row = mysql_fetch_object($result))
{
$recArray[$no]['value'] = mysql_real_escape_string($row->value);
$recArray[$no]['id'] = $row->id;
++$no;
reccall($row->id);
}
return $recArray;
}
but I am not able to generate a structured array like how the order is not the picture. A simple array is created all the time. Can anyone help me with creating the structured array like the order shown above.
use this function instead of your function and your problem will be solved I hope
function reccall($cat_id)
{
$sql = "SELECT a.*
FROM cat_master
WHERE
parent_id = $cat_id
ORDER BY
id ASC
";
$result = mysql_query($sql) or die("Could not fetech Recursively");
while($row = mysql_fetch_object($result))
{
$recArray[$no]['main']['value'] = mysql_real_escape_string($row->value);
$recArray[$no]['main']['id'] = $row->id;
$recArray[$no]['child'] = reccall($row->id);
++$no;
}
return $recArray;
}
<?
// I identified this function separately because it is performed only once, for preparing data
// It's collect an array of all parents in the correct order for each id
function dest($array) {
foreach($array as $key=>$value) {
if($value['pid']==0) continue;
$pid = $key;
$array[$key]['dest'] = array();
while ( $pid = $array[$pid]['pid'] ) {
if($key == $pid) exit("this tree is broken");
$array[$key]['dest'][] = $pid;
}
}
return $array;
}
// Recursive function that puts the items in the correct tree. removes the parameter dest.
function tree($array) {
foreach($array as $key=>$value) {
if( is_array($value['dest']) && !empty($value['dest']) ) {
$pid = array_pop($value['dest']);
if( empty($value['dest']) ) unset($value['dest']);
$array[$pid]['childrens'][$key] = $value;
$array[$pid]['childrens'] = tree($array[$pid]['childrens']);
unset($array[$key]);
}
}
return $array;
}
$array = array(
1 => array(
'title'=>'q',
'pid'=>0,
),
2 => array(
'title'=>'w',
'pid'=>1,
),
3 => array(
'title'=>'e',
'pid'=>0,
),
4 => array(
'title'=>'r',
'pid'=>2,
),
5 => array(
'title'=>'t',
'pid'=>1,
),
);
$tree = tree( dest($array) );
echo '<pre>';
print_r($array);
print_r($tree);
?>
By the way, I should note that these arrays are not very useful. Better to use the result of the function dest()
.