I have an two associative arrayes and I want to check if
$array1["foo"]["bar"]["baz"] exists in $array2["foo"]["bar"]["baz"]
The values doesn't matter, just the "path".
Does array_ intersect_ assoc do what I need?
If not how can I write one myself?
Try this:
<?php
function array_path_exists(&$array, $path, $separator = '/')
{
$a =& $array;
$paths = explode($separator, $path);
$i = 0;
foreach ($paths as $p) {
if (isset($a[$p])) {
if ($i == count($paths) - 1) {
return TRUE;
}
elseif(is_array($a[$p])) {
$a =& $a[$p];
}
else {
return FALSE;
}
}
else {
return FALSE;
}
$i++;
}
}
// Test
$test = array(
'foo' => array(
'bar' => array(
'baz' => 1
)
),
'bar' => 1
);
echo array_path_exists($test, 'foo/bar/baz');
?>
If you only need to check if the keys exist you could use a simple if statement.
<?php
if (isset($array1["foo"]["bar"]["baz"]) && isset($array2["foo"]["bar"]["baz"]
)) { //exists }
