I'm newbie of codeigniter and PHP.
Can I separate an array into two different arrays?
This is my $array:
Array (
[0] => Array
(
[Name] => mark
[Surname] => mark
)[1] => Array
(
[Name] => greg
[Surname] => greg
)
)
Is it possible to create an array of $mark and another with $greg?
If you want to use the value of Name as your variable name: Variable variables
foreach ($arrays as $array) {
if (isset($array['Name'])) {
$$array['Name'] = $array;
}
}
print_r($mark);
You may use eval() if you want to set a string value and make it a variable.
<?php
$arrays = array(
array(
'Name' => 'mark',
'Surname' => 'mark'
),
array(
'Name' => 'greg',
'Surname' => 'greg'
)
);
//I'd use foreach()
foreach ($arrays as $array) {
eval("$".$array['Name']." = array('Name'=>'{$array['Name']}','Surname'=>'{$array['Surname']}',);");
}
echo '<pre>';
var_dump($mark, $greg);
echo '</pre>';
Related
I have a multidimensional array and am trying to group them according to the value in a specific column.
I'm trying to group them by level, but I won't actually know the level beforehand. So, it's not like I can put it in a for loop and say while $i < 7, because I won't know that 7 is the maximum value for the level key, and frankly, I'm not sure that's how I would need to do it even if I did.
[
['cust' => 'XT8900', 'type' => 'standard', 'level' => 1],
['cust' => 'XT8944', 'type' => 'standard', 'level' => 1],
['cust' => 'XT8922', 'type' => 'premier', 'level' => 3],
['cust' => 'XT8816', 'type' => 'permier', 'level' => 3],
['cust' => 'XT7434', 'type' => 'standard', 'level' => 7],
]
Desired result:
Array (
[1] => Array (
[0] => Array (
[cust] => XT8900
[type] => standard
)
[1] => Array (
[cust] => XT8944
[type] => standard
)
)
[3] => Array (
[2] => Array (
[cust] => XT8922
[type] => premier
)
[3] => Array (
[cust] => XT8816
[type] => permier
)
)
[7] => Array (
[4] => Array (
[cust] => XT7434
[type] => standard
)
)
)
Best way, if you have control over building the initial array, is just set things up like that at the start as you add entries.
If not then build a temporary array to sort:
foreach ($input_arr as $key => &$entry) {
$level_arr[$entry['level']][$key] = $entry;
}
Leaves you with the form you wanted and everything referenced together.
Build the array like that in the first place though if at all possible.
You need to group them by level first
Use foreach to loop into array check if the level is the same with the previous item then group it with that array
$templevel=0;
$newkey=0;
$grouparr[$templevel]="";
foreach ($items as $key => $val) {
if ($templevel==$val['level']){
$grouparr[$templevel][$newkey]=$val;
} else {
$grouparr[$val['level']][$newkey]=$val;
}
$newkey++;
}
print($grouparr);
The output of print($grouparr); will display like the format you hoped for
You can also try to
print($grouparr[7]);
Will display
[7] => Array (
[4] => Array (
[cust] => XT7434
[type] => standard
)
)
Or
print($grouparr[3]);
Will display
[3] => Array (
[2] => Array (
[cust] => XT8922
[type] => premier
)
[3] => Array (
[cust] => XT8816
[type] => permier
)
)
Here is the solution I landed on for an identical problem, wrapped as a function:
function arraySort($input,$sortkey){
foreach ($input as $key=>$val) $output[$val[$sortkey]][]=$val;
return $output;
}
To sort $myarray by the key named "level" just do this:
$myArray = arraySort($myArray,'level');
Or if you didn't want it as a function, just for a one time use, this would create $myNewArray from $myArray grouped by the key 'level'
foreach ($myArray as $key=>$val) $myNewArray[$val['level']][]=$val;
function group_assoc($array, $key) {
$return = array();
foreach($array as $v) {
$return[$v[$key]][] = $v;
}
return $return;
}
//Group the requests by their account_id
$account_requests = group_assoc($requests, 'account_id');
$result = array();
foreach ($yourArrayList as $data) {
$id = $data['level'];
if (isset($result[$id])) {
$result[$id][] = $data;
} else {
$result[$id] = array($data);
}
}
Best ans.
$levels = array_unique(array_column($records, 'level'));
$data = array();
foreach($records as $key => $value){
$data[$levels[array_search($value['level'],$levels )]][] = $value ;
}
print_r($data);
To generate the question's exact desured output from the sample input, pull/pop the last value from each row, use that value as the first level grouping key. Then use the original first level index as the second level key. Then push the two remaining elements into the group's subset.
Code: (Demo)
$result = [];
foreach ($array as $key => $row) {
$result[array_pop($row)][$key] = $row;
}
var_export($result);
For functional style syntax, use array_reduce(). (Demo)
var_export(
array_reduce(
array_keys($array),
function($result, $key) use ($array) {
$result[array_pop($array[$key])][$key] = $array[$key];
return $result;
}
)
);
function _group_by($array,$key,$keyName)
{
$return = array();
foreach($array as $val) {
$return[$keyName.$val[$key]][] = $val;
}
return $return;
} //end of function
I'm a beginner and for some reason I'm having trouble with this one. I have the following associative array.
Array
(
[0] => Array
(
[name_type] => UnixName
[name] => charles
)
[1] => Array
(
[name_type] => DNSFQDN
[name] => charles.mydnsdomain.com
)
[2] => Array
(
[name_type] => DNSDomain
[name] => mydnsdomain.com
)
)
The problem is that these arrays are never in the same order and the keys are named the same. I only need the DNSFQDN. When I loop through the array how can I check to see if the DNSFQDN value is there, and then retrieve charles.mydnsdomain.com so I can put it into a varible.
I've tried functions like in_array and array_search but I'm having trouble with these as I'm working strictly with associative arrays.
Any help would be appreciated.
This will be helpful;
$input = array(
array(
'name_type' => 'UnixName',
'name' => 'charles'
),
array(
'name_type' => 'DNSFQDN',
'name' => 'charles.mydnsdomain.com'
),
array(
'name_type' => 'DNSDomain',
'name' => 'mydnsdomain.com'
)
);
$domain = $input[array_search('DNSFQDN', array_column($input, 'name_type'))]['name'];
echo $domain; exit;
// output; charles.mydnsdomain.com
its simple try bellow ..i hope it will help
<?php
$test_array = array(
array('name_type'=>'UnixName','name'=>'charles'),
array('name_type'=>'DNSFQDN','name'=>'charles.mydnsdomain.com'),
array('name_type'=>'DNSDomain','name'=>'mydnsdomain.com'),
);
foreach ($test_array as $key => $value) {
if($value['name_type']=='DNSFQDN'){
echo "Domain Name :";
echo $value['name'];
}
}
?>
You have to iterate array using foreach loop.
<?php
$array_values = array(
array('name_type'=>'UnixName','name'=>'charles'),
array('name_type'=>'DNSFQDN','name'=>'charles.mydnsdomain.com'),
array('name_type'=>'DNSDomain','name'=>'mydnsdomain.com'),
);
foreach ($array_values as $value) {
if($value['name_type']=='DNSFQDN'){
echo "DNSDomain = ".$value['name'];
}
}
?>
I need to convert my array but I don't have extended experience to complete this task.
Please help me to find a way to do please?
I have this:
Array(
[0] => Array
(
[BTC] => 0.07634
)
[1] => Array
(
[ETH] => 0.00103
)
[2] => Array
(
[LTC] => 0.006787
)
[3] => Array
(
[XMR] => 0.006351
)
And I need this:
Array(
[BTC] => 0.07634
[ETH] => 0.00103(
[LTC] => 0.006787
[XMR] => 0.006351
[ZEC] => 0.00144
[MD_DT_CAD] => 2017-08-14 02:16:44
)
You have following
$data =array(
array("BTC" => 0.07634),
array("ETH" => 0.00103),
array("LTC" => 0.006787),
array("XMR" => 0.006351)
);
You can achieve your result by following.
<?php
$data =array(
array("BTC" => 0.07634),
array("ETH" => 0.00103),
array("LTC" => 0.006787),
array("XMR" => 0.006351)
);
foreach($data as $value){
foreach ($value as $key => $value1) {
$new_arr[$key] = $value1;
}
}
echo "<pre>";
print_r($new_arr);
?>
Simple use call_user_func_array with array_merge
$array = Array("0" => Array("BTC" => 0.07634),"1" => Array("ETH" => 0.00103),"2" => Array("LTC" => 0.006787),"3" => Array("XMR" => 0.006351));
$new_array = call_user_func_array('array_merge', $array);
print_r($new_array);
<?php $array=array(array("BTC" => 0.07634),array("ETH" => 0.00103),array("LTC" => 0.006787),
array("XMR" => 0.006351));
//echo print_r($array);
$array2 = array_reduce($array, 'array_merge', array());//or call_user_func_array('array_merge', $array);
echo print_r($array2);
?>
Assuming your array is called $array :
$new_array = array_merge(... $array);
Explaination : array_merge() takes an undefined amount of different arrays as parameters, gathers them as entries in a single array by using the splat operator (...) and then merges all these arrays in one before returning it.
Calling that function and passing it a single array and using the splat operator in the calling too makes that single array to be the single array containing the arrays to merge on which the function will work. By doing that, you can have the function to merge sub_arrays of an array you already have without calling additional functions.
I need your help with my problem. My problem is I have 2 arrays the first one is the main array. The second is the array for my new data.
Let's say I have these arrays.
This is the main array:
Array
(
0 => Array
(
'id' => 1,
'name' => 'Apple',
'age' => 12
)
1 => Array
(
'id' => 2,
'name' => May,
'age' => 13
)
)
This is the second array:
Array
(
1 => Array
(
'gender' => 'Male'
)
2 => Array
(
'gender' => 'Female'
)
)
And I have this loop in PHP
foreach($main_array as &$main){
//this is the loop inside the first array
// how can I add the second array with it?
}
This is the sample output:
[0] => Array
(
[id] => 1
[name] => Apple
[age] => 12
[gender] => Female
)
[1] => Array
(
[id] => 2
[name] => May
[age] => 13
[gender] => Female
)
How can I do that? Any suggestions? That's all thanks.
for($i=0; $i<count($main_array); $i++){
for($j=0; $j<count($second_array); $j++){
if($main_array[$i]['id'] == $j){
$main_array[$i]['gender'] = $second_array[$j]['gender']
}
}
}
I fixed your example code, it wont run otherwise.
<?php
// Test data:
$main_array = Array(
0 => Array(
'id' => 1,
'name' => 'Apple',
'age' => 12
),
1 => Array (
'id' => 2,
'name' => 'May',
'age' => 13
)
);
$lookup = Array(
1 => Array(
'gender' => 'Male'
),
2 => Array(
'gender' => 'Female'
)
);
// Your answer:
foreach ($main_array as &$main) {
if (array_key_exists($main['id'],$lookup)) {
$main['gender'] = $lookup[$main['id']]['gender']; // <-- sets gender value
}
}
// Output it to browser:
echo '<pre>$main_array = '.print_r($main_array,true).'</pre>';
The array_key_exists() check is there to avoid errors such as PHP Notice: Undefined offset: 123 when the $lookup data is incomplete.
If you want to merge all of the data from both arrays:
PHP tools:
The exact behaviors of these functions needs to be studied and tested before usage, to make sure it fits your intent.
// array merge recursive doesn't merge numeric keys
$main_array = array_merge_recursive($main_array, $secondary_array);
// array replace recursive has a downside of replacing stuff
$main_array = array_replace_recursive($main_array, $secondary_array);
Rolling your own:
foreach($main_array as $i => &$main){
if(isset($secondary_array[$i])) {
foreach($secondary_array[$i] AS $key => $value) {
$main[$key] = $value;
}
}
}
Both of the above solutions only apply if the array-indexes of $main_array and $secondary_array match.
In your example your arrays don't match:
- $secondary_array[0] doesn't exist so $main_array[0] will not be populated with a 'gender' value;
- $main_array[2] doesn't exist so $main_array[2] will be created and it will only have a 'gender' value same as $secondary_array[2]['gender']
If you want to only merge some bits and pieces of the arrays:
Rolling your own:
foreach($main_array as $i => &$main) {
if(isset($secondary_array[$i])) and isset($secondary_array[$i]['gender'])) {
$main['gender'] = $secondary_array[$i]['gender'];
}
}
foreach($main_array as &$main){//this is the loop inside the first array
foreach($second_array as &$second){ //this is the loop inside the second array
}
}
foreach($arr1 as $k => $arr1Item) {
$arr1[$k]['gender'] = $arr2[$k]['gender'];
}
I am fetch facebook user's working history, and when I print_r, I get an array like this:
Array (
[work] => Array (
[0] => Array (
[employer] => Array (
[id] => 111178415566505
[name] => Liputan 6 SCTV
)
) [1] => Array (
[employer] => Array (
[id] => 107900732566334
[name] => SCTV
)
)
)
[id] => 502163984
)
How do I display only the value from name, so the output will be like this:
Liputan 6 SCTV
SCTV
I used foreach, but always an error always happens.
Try this:
foreach ($array['work'] as $arr) {
echo $arr['employer']['name']."<br>\n";
}
This is assuming your data looks like:
$array = array(
'work' => array(
array(
'employer' => array('id' => 111178415566505, 'name' => 'Liputan 6 SCTV'),
),
array(
'employer' => array('id' => 107900732566334, 'name' => 'SCTV'),
),
),
'id' => 502163984,
);
for instance your array variable name is $test, then you can get name value by
$test['work'][0]['employer']['name']
you can check your array structure using pre tag, like
echo '<pre>';print_r($test);
You can use array_reduce, implode, and closure (PHP 5.3+) to do this.
echo implode("<br/>", array_reduce($array["work"],
function(&$arr, $v){
$arr[] = $v["employer"]["name"];
},array()
));
I assume $arr is working history array. You can use for Then array look like this :
for($i=0, $records = count( $arr['work']); $i < $records; $i++) {
echo $arr['work'][$i]['employer']['name'] ."<br>";
}
Using foreach
foreach( $arr['work'] as $works) {
echo $works['employer']['name'] ."<br>";
}
foreach ($your_array as $your_array_item)
{
echo $your_array_item['work'][0]['employer']['name'] . '<br>';
}
$count=count($array);
for($i=0,$i<=$count;$i++){
echo $array['work'][$i]['employer']['name'];
}
This will work.. Dynamically..
foreach ($array['work'] as $val_arr) {
echo $val_arr['employer']['name']."<br />";
}