Is there an easy way to iterate over an associative array of this structure in PHP:
The array $searches has a numbered index, with between 4 and 5 associative parts. So I not only need to iterate over $searches[0] through $searches[n], but also $searches[0]["part0"] through $searches[n]["partn"]. The hard part is that different indexes have different numbers of parts (some might be missing one or two).
Thoughts on doing this in a way that's nice, neat, and understandable?
Nest two foreach loops:
foreach ($array as $i => $values) {
print "$i {\n";
foreach ($values as $key => $value) {
print " $key => $value\n";
}
print "}\n";
}
&$i and &$values in their declaration and you should unset the variables after the loop.I know it's question necromancy, but iterating over Multidimensional arrays is easy with Spl Iterators
$iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($array));
foreach($iterator as $key=>$value) {
echo $key.' -- '.$value.'<br />';
}
See
Looks like a good place for a recursive function, esp. if you'll have more than two levels of depth.
function doSomething(&$complex_array)
{
foreach ($complex_array as $n => $v)
{
if (is_array($v))
doSomething($v);
else
do whatever you want to do with a single node
}
}
You should be able to use a nested foreach statment
from the php manual
/* foreach example 4: multi-dimensional arrays */
$a = array();
$a[0][0] = "a";
$a[0][1] = "b";
$a[1][0] = "y";
$a[1][1] = "z";
foreach ($a as $v1) {
foreach ($v1 as $v2) {
echo "$v2\n";
}
}
Can you just loop over all of the "part[n]" items and use isset to see if they actually exist or not?
I'm really not sure what you mean here - surely a pair of foreach loops does what you need?
foreach($array as $id => $assoc)
{
foreach($assoc as $part => $data)
{
// code
}
}
Or do you need something recursive? I'd be able to help more with example data and a context in how you want the data returned.
Consider this multi dimentional array, I hope this function will help.
$n = array('customer' => array('address' => 'Kenmore street',
'phone' => '121223'),
'consumer' => 'wellington consumer',
'employee' => array('name' => array('fname' => 'finau', 'lname' => 'kaufusi'),
'age' => 32,
'nationality' => 'Tonga')
);
iterator($n);
function iterator($arr){
foreach($arr as $key => $val){
if(is_array($val))iterator($val);
echo '<p>key: '.$key.' | value: '.$val.'</p>';
//filter the $key and $val here and do what you want
}
}
