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The following code will probably be understood better by advanced user, this code will only search array elements.
meaning if you have $array[books][php][0] and you are searching for 'php' it will not find the [php] array, i am sure that with minor
modifications you could make it find either the element or an array element.
Hopefully this code will help someone else, i just spent 30 minutes getting this to work ;)
| <?php
// the function that will recursivly search an array.
function searchArrayRecursive($needle, $haystack){
// loop through the haystack that has been passed in
foreach ($haystack as $key => $arr) {
// check to make sure that the element is an array
if(is_array($arr)) {
/* this is the tricky line, this will take the value
or $arr and call the function again each time
the function is called, $ret is set with the
return value of the function call, this builds
the string that get's returned.
*/
$ret=searchArrayRecursive($needle, $arr);
/* check to make sure that the function call did
not return -1 and return the value of the $key and
the $ret
*/
if($ret!=-1) return $key.','.$ret;
} else {
/* check the array element and see if it matches the
search term. if it does, return the $key of the
element.
*/
if($arr == $needle) return (string)$key;
}
}
// nothing was found, return -1
return -1;
}
// create the actual array to use ;)
$myArray = array (
"computer" => array(
"hardware" => array(
"modem", "hard drive", "ram", "mother board"
),
"softare" => array(
"photoshop", "quickbooks"
)
),
"cars" => array(
"honda" => array(
"civic", "accord"
),
"toyota" => array(
"4Runner", "camry", "carolla", "rav4", "tundra"
)
),
"books" => array(
"php" => array(
"sams teach yourself php mysql and apache",
"core php programming"
)
)
);
// nicely format and print the value of $myArray
print "<pre>";
print_r($myArray);
print "</pre>";
// set the value to find in the array
$findWhat = "tundra";
// call the function with the needle and haystack.
$result = searchArrayRecursive($findWhat, $myArray);
// check to make sure the returned result was not -1
if($result != -1) {
/* create the result array from the string returned from
the function.
*/
$result = explode(',', $result);
/* Loop through the array to create an array format string
such as $array[this][that][0]
*/
foreach($result as $element) {
// append the element to the $result string
$result .= '['.$element.']';
}
}
// check to make sure the result of the function is not -1
if($result != -1) {
// tell us we found what we were looking for.
echo 'Found '.$findWhat.'! '.$result;
} else {
/* tell us that we didnt find any array keys matching
the search term.
*/
echo 'Couldn\'t Find <b>\''.$findWhat.'\'</b> in the array.';
}
?> | |
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