I have this array:
$actualPlan = 'medium';
$plans = array(
array(
'plans' => array(
'tiny' => 29,
'small' => 69,
'medium' => 179,
'big' => 359
)
)
);
During a foreach, I display the contents of plans of this array like this:
foreach($plans as $key => $data) {
foreach($data['plans'] as $plan => $rate) {
...
}
}
But how can I know the position of the $actualPlan ?
For example, for :
if $actualPlan == medium it should return me 3.
if $actualPlan == tiny it should return me 1.
Thanks.
inside the loop:
echo array_search($actualPlan, array_keys($rate)); // returns the index position as int
here will output 1,2,3,4 for the inputs 'tiny','small','medium','big'
Within the foreach($plans as $key => $data) {, you could make the conditional like this :
$current_plan = explode('___', $actualPlan);
$current_key = array_search($current_plan[0],array_keys($data['plans']));
foreach($data['plans'] as $plan => $rate) {
$current_iterated_key = array_search($plan,array_keys($data['plans']));
if ($current_iterated_key < $current_key) {
echo "$plan => Downgrade\r\n";
} elseif ($current_iterated_key > $current_key) {
echo "$plan => Upgrade\r\n";
} elseif($current_iterated_key == $current_key) {
echo "$plan => Current\r\n";
}
}
Related
Consider the following multisort method. In this case I have a array of items with a specific start date. Example array is shown:
0 -> array('title' => 'hello',
'attributes' => array('id' => 4, 'startdate' => '2013-06-11')),
1 -> array('title' => 'hello second entry',
'attributes' => array('id' => 6, 'startdate' => '2013-04-11'))
You can see that the 2nd entry should come before the first. Using my call currently will not work because It only checks to depth 1 of the array.
$albums = $this->multiSort($items, "SORT_ASC", 'startdate', true);
How would be the best way to modify this method to have a depth search on the items in the array. Even better would be to be able to specific the depth key. I would like to avoid having to add additional parameters to the method.
I could call the method like so and then write a for loop to get the key data, but having nested for loops is not something I want to do.
$albums = $this->multiSort($items, "SORT_ASC", array('attributes', 'startdate') , true);
What is the best way to optimize this method for my case?
public function multiSort($data, $sortDirection, $field, $isDate) {
if(empty($data) || !is_array($data) || count($data) < 2) {
return $data;
}
foreach ($data as $key => $row) {
$orderByDate[$key] = ($isDate ? strtotime($row[$field]) : $row[$field]);
}
if($sortDirection == "SORT_DESC") {
array_multisort($orderByDate, SORT_DESC, $data);
} else {
array_multisort($orderByDate, SORT_ASC, $data);
}
return $data;
}
UPDATED. This allows you to pass in a string for field that is delimited and is a path to your desired field.
$items = Array();
$items[0] = array('title' => 'hello',
'attributes' => array('id' => 4, 'startdate' => '2013-06-11'));
$items[1] = array('title' => 'hello second entry',
'attributes' => array('id' => 6, 'startdate' => '2013-04-11'));
function multiSort($data, $sortDirection, $field, $isDate) {
if(empty($data) || !is_array($data) || count($data) < 2) {
return $data;
}
// Parse our search field path
$parts = explode("/", $field);
foreach ($data as $key => $row) {
$temp = &$row;
foreach($parts as $key2) {
$temp = &$temp[$key2];
}
//$orderByDate[$key] = ($isDate ? strtotime($row['attributes'][$field]) : $row['attributes'][$field]);
$orderByDate[$key] = ($isDate ? strtotime($temp) : $temp);
}
unset($temp);
if($sortDirection == "SORT_DESC") {
array_multisort($orderByDate, SORT_DESC, $data);
} else {
array_multisort($orderByDate, SORT_ASC, $data);
}
return $data;
}
$albums = multiSort($items, "SORT_ASC", 'attributes/startdate', true);
print_r($albums);
Ouput:
Array
(
[0] => Array
(
[title] => hello second entry
[attributes] => Array
(
[id] => 6
[startdate] => 2013-04-11
)
)
[1] => Array
(
[title] => hello
[attributes] => Array
(
[id] => 4
[startdate] => 2013-06-11
)
)
)
I searched in Google and consulted the PHP documentation, but couldn't figure out how the following code works:
$some='name=Licensing Module;nextduedate=2013-04-10;status=Active|name=Test Addon;nextduedate=2013-04-11;status=Active';
function getActiveAddons($somet) {
$addons = array( );
foreach ($somet as $addon) {
if ($addon['status'] == 'Active') {
$addons[] = $addon['name'];
continue;
}
}
return $addons;
}
echo (count( getActiveAddons( $some ) ) ? implode( '<br />', getActiveAddons( $some ) ) : 'None');
The code always echo's None.
Please help me in this.
I don't know where you got this code from but you've initialized $some the wrong way. It is expected as an array like this:
$some = array(
array(
'name' => 'Licensing Module',
'nextduedate' => '2013-04-10',
'status' => 'Active'
),
array(
'name' => 'Test Addon'
'nextduedate' => '2013-04-11',
'status' => 'Active'
)
);
I guess the article you've read is expecting you to parse the original string into this format.
You can achieve this like this:
$string = 'name=Licensing Module;nextduedate=2013-04-10;status=Active|name=Test Addon;nextduedate=2013-04-11;status=Active';
$result = array();
foreach(explode('|', $string) as $record) {
$item = array();
foreach(explode(';', $record) as $column) {
$keyval = explode('=', $column);
$item[$keyval[0]] = $keyval[1];
}
$result[]= $item;
}
// now call your function
getActiveAddons($result);
$some is not an array so foreach will not operate on it. You need to do something like
$some = array(
array(
'name' => 'Licensing Module',
'nextduedate' => '2013-04-10',
'status' => 'Active'
),
array(
'name' => 'Test Addon',
'nextduedate' => '2013-04-11',
'status'=> 'Active'
)
);
This will create a multidimensional array that you can loop through.
function getActiveAddons($somet) {
$addons = array( );
foreach ($somet as $addon) {
foreach($addon as $key => $value) {
if ($key == 'status' && $value == 'Active') {
$addons[] = $addon['name'];
continue;
}
}
}
return $addons;
}
First, your $some variable is just a string. You could parse the string into an array using explode(), but it's easier to just start as an array:
$some = array(
array(
"name" => "Licensing Module",
"nextduedate" => "2013-04-10",
"status" => "Active",
),
array(
"name" => "Test Addon",
"nextduedate" => "2013-04-11",
"status" => "Active",
)
);
Now, for your function, you are on the right track, but I'll just clean it up:
function getActiveAddons($somet) {
if (!is_array($somet)) {
return false;
}
$addons = array();
foreach ($somet as $addon) {
if ($addon['status'] == 'Active') {
$addons[] = $addon['name'];
}
}
if (count($addons) > 0) {
return $addons;
}
return false;
}
And finally your output (you were calling the function twice):
$result = getActiveAddons($some);
if ($result === false) {
echo "No active addons!";
}
else {
echo implode("<br />", $result);
}
HI I am fairly new to php.
I have an array
$arr = array(0 => array('GID'=>1,'groupname'=>"cat1",'members'=>array(0=>array('mid'=>11,'mname'=>'wwww'),1=>array('mid'=>12,'mname'=>'wswww'))),
1 => array('GID'=>2,'groupname'=>"cat2",'members'=>array(0=>array('mid'=>13,'mname'=>'gggwwww'),1=>array('mid'=>14,'mname'=>'wvvwww'))),
2 => array('GID'=>3,'groupname'=>"cat1",'members'=>array(0=>array('mid'=>15,'mname'=>'wwddsww')),1=>array('mid'=>16,'mname'=>'wwwdddw')));
ie...,I have GID,groupname,mid(member id),mname(member name).I want to insert a new mid and mname into a group if it is already in the array ,if it is not exists then create a new subarray with these elements..I also need to check a member id(mid) is also present.........................I used the code but its not working fine............. if (!empty($evntGroup)) {
foreach ($evntGroup as $k => $group) {
if ($group['GID'] == $group_id) {
foreach($group as $j=> $mem){
if($mem['mid'] == $mem_id){
unset($evntGroup[$k]['members'][$j]['mid']);
unset($evntGroup[$k]['members'][$j]['mname']);
}
else{
$evntGroup[$k]['members'][] = array(
'mid' => $mem_id,
'mname' => $mem_name);
}}
} else {
$evntGroup[] = array(
'GID' => $group_id,
'groupname' => $Group['event_group_name'],
'members' => array(
0 => array(
'mid' => $mem_id,
'mname' => $mem_name
)
)
);
}
}
} else {
$evntGroup[$i]['GID'] = $group_id;
$evntGroup[$i]['groupname'] = $Group['event_group_name'];
$evntGroup[$i]['members'][] = array(
'mid' => $mem_id,
'mname' => $mem_name);
$i++;
}
In the form of a function, the easiest solution will look something like this:
function isGidInArray($arr, $val) {
foreach($arr as $cur) {
if($cur['GID'] == $val)
return true;
}
return false;
}
You've updated your question to specify what you want to do if the specified GID is found, but that's just a trivial addition to the loop:
function doSomethingIfGidInArray($arr, $val) {
foreach($arr as $cur) {
if($cur['GID'] == $val) {
doSomething();
break; //Assuming you only expect one instance of the passed value - stop searching after it's found
}
}
}
There is unfortunately no native PHP array function that will retrieve the same index of every array within a parent array. I've often wanted such a thing.
Something like this will match if GID equals 3:
foreach( $arr as $item ) {
if( $item['GID'] == 3 ) {
// matches
}
}
There is the code
function updateByGid(&$array,$gid,$groupname,$mid,$mname) {
//For each element of the array
foreach ($array as $ii => $elem) {
//If GID has the same value
if ($elem['GID'] == $gid) {
//Insert new member
$array[$ii]['members'][]=array(
'mid'=>$mid,
'mname'=>$mname);
//Found!
return 0;
}
}
//If not found, create new
$array[]=array(
'GID'=>$gid,
'groupname'=>$groupname,
'members'=>array(
0=>array(
'mid'=>$mid,
'mname'=>$mname
)
)
);
return 0;
}
I have a deep and long array (matrix). I only know the product ID.
How found way to product?
Sample an array of (but as I said, it can be very long and deep):
Array(
[apple] => Array(
[new] => Array(
[0] => Array([id] => 1)
[1] => Array([id] => 2))
[old] => Array(
[0] => Array([id] => 3)
[1] => Array([id] => 4))
)
)
I have id: 3, and i wish get this:
apple, old, 0
Thanks
You can use this baby:
function getById($id,$array,&$keys){
foreach($array as $key => $value){
if(is_array( $value )){
$result = getById($id,$value,$keys);
if($result == true){
$keys[] = $key;
return true;
}
}
else if($key == 'id' && $value == $id){
$keys[] = $key; // Optional, adds id to the result array
return true;
}
}
return false;
}
// USAGE:
$result_array = array();
getById( 3, $products, $result_array);
// RESULT (= $result_array)
Array
(
[0] => id
[1] => 0
[2] => old
[3] => apple
)
The function itself will return true on success and false on error, the data you want to have will be stored in the 3rd parameter.
You can use array_reverse(), link, to reverse the order and array_pop(), link, to remove the last item ('id')
Recursion is the answer for this type of problem. Though, if we can make certain assumptions about the structure of the array (i.e., 'id' always be a leaf node with no children) there's further optimizations possible:
<?php
$a = array(
'apple'=> array(
'new'=> array(array('id' => 1), array('id' => 2), array('id' => 5)),
'old'=> array(array('id' => 3), array('id' => 4, 'keyname' => 'keyvalue'))
),
);
// When true the complete path has been found.
$complete = false;
function get_path($a, $key, $value, &$path = null) {
global $complete;
// Initialize path array for first call
if (is_null($path)) $path = array();
foreach ($a as $k => $v) {
// Build current path being tested
array_push($path, $k);
// Check for key / value match
if ($k == $key && $v == $value) {
// Complete path found!
$complete= true;
// Remove last path
array_pop($path);
break;
} else if (is_array($v)) {
// **RECURSION** Step down into the next array
get_path($v, $key, $value, $path);
}
// When the complete path is found no need to continue loop iteration
if ($complete) break;
// Teardown current test path
array_pop($path);
}
return $path;
}
var_dump( get_path($a, 'id', 3) );
$complete = false;
var_dump( get_path($a, 'id', 2) );
$complete = false;
var_dump( get_path($a, 'id', 5) );
$complete = false;
var_dump( get_path($a, 'keyname', 'keyvalue') );
I tried this for my programming exercise.
<?php
$data = array(
'apple'=> array(
'new'=> array(array('id' => 1), array('id' => 2), array('id' => 5)),
'old'=> array(array('id' => 3), array('id' => 4))
),
);
####print_r($data);
function deepfind($data,$findfor,$depth = array() ){
foreach( $data as $key => $moredata ){
if( is_scalar($moredata) && $moredata == $findfor ){
return $depth;
} elseif( is_array($moredata) ){
$moredepth = $depth;
$moredepth[] = $key;
$isok = deepfind( $moredata, $findfor, $moredepth );
if( $isok !== false ){
return $isok;
}
}
}
return false;
}
$aaa = deepfind($data,3);
print_r($aaa);
If you create the array once and use it multiple times i would do it another way...
When building the initial array create another one
$id_to_info=array();
$id_to_info[1]=&array['apple']['new'][0];
$id_to_info[2]=&array['apple']['new'][2];
Right now i got an array which has some sort of information and i need to create a table from it. e.g.
Student{
[Address]{
[StreetAddress] =>"Some Street"
[StreetName] => "Some Name"
}
[Marks1] => 100
[Marks2] => 50
}
Now I want to create database table like which contain the fields name as :
Student_Address_StreetAddress
Student_Address_StreetName
Student_Marks1
Student_Marks2
It should be recursive so from any depth of array it can create the string in my format.
You can use the RecursiveArrayIterator and the RecursiveIteratorIterator (to iterate over the array recursively) from the Standard PHP Library (SPL) to make this job relatively painless.
$iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($arr));
$keys = array();
foreach ($iterator as $key => $value) {
// Build long key name based on parent keys
for ($i = $iterator->getDepth() - 1; $i >= 0; $i--) {
$key = $iterator->getSubIterator($i)->key() . '_' . $key;
}
$keys[] = $key;
}
var_export($keys);
The above example outputs something like:
array (
0 => 'Student_Address_StreetAddress',
1 => 'Student_Address_StreetName',
2 => 'Student_Marks1',
3 => 'Student_Marks2',
)
(Working on it, here is the array to save the trouble):
$arr = array
(
'Student' => array
(
'Address' => array
(
'StreetAddress' => 'Some Street',
'StreetName' => 'Some Name',
),
'Marks1' => '100',
'Marks2' => '50',
),
);
Here it is, using a modified version of #polygenelubricants code:
function dfs($array, $parent = null)
{
static $result = array();
if (is_array($array) * count($array) > 0)
{
foreach ($array as $key => $value)
{
dfs($value, $parent . '_' . $key);
}
}
else
{
$result[] = ltrim($parent, '_');
}
return $result;
}
echo '<pre>';
print_r(dfs($arr));
echo '</pre>';
Outputs:
Array
(
[0] => Student_Address_StreetAddress
[1] => Student_Address_StreetName
[2] => Student_Marks1
[3] => Student_Marks2
)
Something like this maybe?
$schema = array(
'Student' => array(
'Address' => array(
'StreetAddresss' => "Some Street",
'StreetName' => "Some Name",
),
'Marks1' => 100,
'Marks2' => 50,
),
);
$result = array();
function walk($value, $key, $memo = "") {
global $result;
if(is_array($value)) {
$memo .= $key . '_';
array_walk($value, 'walk', $memo);
} else {
$result[] = $memo . $key;
}
}
array_walk($schema, 'walk');
var_dump($result);
I know globals are bad, but can't think of anything better now.
Something like this works:
<?php
$arr = array (
'Student' => array (
'Address' => array (
'StreetAddress' => 'Some Street',
'StreetName' => 'Some Name',
),
'Marks1' => array(),
'Marks2' => '50',
),
);
$result = array();
function dfs($data, $prefix = "") {
global $result;
if (is_array($data) && !empty($data)) {
foreach ($data as $key => $value) {
dfs($value, "{$prefix}_{$key}");
}
} else {
$result[substr($prefix, 1)] = $data;
}
}
dfs($arr);
var_dump($result);
?>
This prints:
array(4) {
["Student_Address_StreetAddress"] => string(11) "Some Street"
["Student_Address_StreetName"] => string(9) "Some Name"
["Student_Marks1"] => array(0) {}
["Student_Marks2"] => string(2) "50"
}
function getValues($dataArray,$strKey="")
{
global $arrFinalValues;
if(is_array($dataArray))
{
$currentKey = $strKey;
foreach($dataArray as $key => $val)
{
if(is_array($val) && !empty($val))
{
getValues($val,$currentKey.$key."_");
}
else if(!empty($val))
{
if(!empty($strKey))
$strTmpKey = $strKey.$key;
else
$strTmpKey = $key;
$arrFinalValues[$strTmpKey]=$val;
}
}
}
}