I have two array like below:
$array1 = array(
[0]=>array([0]=>a_a [1]=>aa)
[1]=>array([0]=>b_b [1]=>bb)
[3]=>array([0]=>c_c [1]=>cc)
)
$array2 = array(
[0]=>array([0]=>aa [1]=>AA)
[1]=>array([0]=>bb [1]=>BB)
[3]=>array([0]=>cc [1]=>CC)
)
what i would like to merge or overlap to output like below:
$result = array(
[0]=>array([0]=>a_a [1]=>AA)
[1]=>array([0]=>b_b [1]=>BB)
[3]=>array([0]=>c_c [1]=>CC)
)
either output like below:
$result = array(
[0]=>array([0]=>a_a [1]=>aa [2]=>AA)
[1]=>array([0]=>b_b [1]=>bb [2]=>AA)
[3]=>array([0]=>c_c [1]=>cc [2]=>AA)
)
how i do this thing what is the best way any suggestion.
I don;t know which is the best way but you could do this with two loops. Example:
$result = array();
foreach($array1 as $val1) {
foreach($array2 as $val2) {
if($val1[1] == $val2[0]) {
$result[] = array($val1[0], $val1[1], $val2[1]);
}
}
}
echo '<pre>';
print_r($result);
For the first result, its easily modifiable:
$result[] = array($val1[0], $val2[1]);
you can use this function
1st output :
function my_array_merge(&$array1, &$array2) {
$result = array();
foreach($array1 as $key => &$value) {
$result[$key] = array_unique(array_merge($value, $array2[$key]));
}
return $result;
}
$arr = my_array_merge($array1, $array2);
2st output :
function my_array_merge(&$array1, &$array2) {
$result = array();
foreach($array1 as $key => &$value) {
$result[$key] = array_merge(array_diff($value, $array2[$key]), array_diff($array2[$key],$value));
}
return $result;
}
Related
Suppose, i have the fallowing json:
{
"foo.bar": 1
}
and i want to save this like this:
$array["foo"]["bar"] = 1
but i also can have more than 2 "parameters" in string. For example:
{
"foo.bar.another_foo.another_bar": 1
}
and i want to save this same way.
$array["foo"]["bar"]["another_foo"]["another_bar"] = 1
Any ideas how can i do that in case that i don't know how many parameters i have?
This is far from the nicest solution, but I've been programming all day so I'm a little tired, but I hope it gives you something to work off, or at least a working solution for the time being.
Here's the IDEone of it working: click
And here's the code:
$json = '{
"foo.bar": 1
}';
$decoded = json_decode($json, true);
$data = array();
foreach ($decoded as $key => $value) {
$keys = explode('.', $key);
$data[] = buildNestedArray($keys, $value);
}
print_r($data);
function buildNestedArray($keys, $value) {
$new = array();
foreach ($keys as $key) {
if (empty($new)) {
$new[$key] = $value;
} else {
array_walk_recursive($new, function(&$item) use ($key, $value) {
if ($item === $value) {
$item = array($key => $value);
}
});
}
}
return $new;
}
Output:
Array
(
[0] => Array
(
[foo] => Array
(
[bar] => 1
)
)
)
Wasn't sure whether your JSON string could have multiples or not so I made it handle the former.
Hope it helps, may come back and clean it up a bit in the future.
Start with a json_decode
Then build a foreach loop to break apart the keys and pass them to some kind of recursive function that creates the values.
$old_stuff = json_decode($json_string);
$new_stuff = array();
foreach ($old_stuff AS $key => $value)
{
$parts = explode('.', $key);
create_parts($new_stuff, $parts, $value);
}
Then write your recursive function:
function create_parts(&$new_stuff, $parts, $value)
{
$part = array_shift($parts);
if (!array_key_exists($part, $new_stuff)
{
$new_stuff[$part] = array();
}
if (!empty($parts)
{
create_parts($new_stuff[$part], $parts, $value);
}
else
{
$new_stuff = $value;
}
}
I have not tested this code so don't expect to just cut and past but the strategy should work. Notice that $new_stuff is passed by reference to the recursive function. This is very important.
Try the following trick for "reformatting" into json string which will fit the expected array structure:
$json = '{
"foo.bar.another_foo.another_bar": 1
}';
$decoded = json_decode($json, TRUE);
$new_json = "{";
$key = key($decoded);
$keys = explode('.', $key);
$final_value = $decoded[$key];
$len = count($keys);
foreach ($keys as $k => $v) {
if ($k == 0) {
$new_json .= "\"$v\"";
} else {
$new_json .= ":{\"$v\"";
}
if ($k == $len - 1) $new_json .= ":$final_value";
}
$new_json .= str_repeat("}", $len);
var_dump($new_json); // '{"foo":{"bar":{"another_foo":{"another_bar":1}}}}'
$new_arr = json_decode($new_json, true);
var_dump($new_arr);
// the output:
array (size=1)
'foo' =>
array (size=1)
'bar' =>
array (size=1)
'another_foo' =>
array (size=1)
'another_bar' => int 1
I need compare 2 arrays , the first array have one order and can´t change , in the other array i have different values , the first array must compare his id with the id of the other array , and if the id it´s the same , take the value and replace for show all in the same order
For Example :
$array_1=array("1a-dogs","2a-cats","3a-birds","4a-people");
$array_2=array("4a-walking","2a-cats");
The Result in this case i want get it´s this :
"1a-dogs","2a-cats","3a-birds","4a-walking"
If the id in this case 4a it´s the same , that entry must be modificate and put the value of other array and stay all in the same order
I do this but no get work me :
for($fte=0;$fte<count($array_1);$fte++)
{
$exp_id_tmp=explode("-",$array_1[$fte]);
$cr_temp[]="".$exp_id_tmp[0]."";
}
for($ftt=0;$ftt<count($array_2);$ftt++)
{
$exp_id_targ=explode("-",$array_2[$ftt]);
$cr_target[]="".$exp_id_targ[0]."";
}
/// Here I tried use array_diff and others but no can get the results as i want
How i can do this for get this results ?
Maybe you could use the array_udiff_assoc() function with a callback
Here you go. It's not the cleanest code I've ever written.
Runnable example: http://3v4l.org/kUC3r
<?php
$array_1=array("1a-dogs","2a-cats","3a-birds","4a-people");
$array_2=array("4a-walking","2a-cats");
function getKeyStartingWith($array, $startVal){
foreach($array as $key => $val){
if(strpos($val, $startVal) === 0){
return $key;
}
}
return false;
}
function getMergedArray($array_1, $array_2){
$array_3 = array();
foreach($array_1 as $key => $val){
$startVal = substr($val, 0, 2);
$array_2_key = getKeyStartingWith($array_2, $startVal);
if($array_2_key !== false){
$array_3[$key] = $array_2[$array_2_key];
} else {
$array_3[$key] = $val;
}
}
return $array_3;
}
$array_1 = getMergedArray($array_1, $array_2);
print_r($array_1);
First split the 2 arrays into proper key and value pairs (key = 1a and value = dogs). Then try looping through the first array and for each of its keys check to see if it exists in the second array. If it does, replace the value from the second array in the first. And at the end your first array will contain the result you want.
Like so:
$array_1 = array("1a-dogs","2a-cats","3a-birds","4a-people");
$array_2 = array("4a-walking","2a-cats");
function splitArray ($arrayInput)
{
$arrayOutput = array();
foreach ($arrayInput as $element) {
$tempArray = explode('-', $element);
$arrayOutput[$tempArray[0]] = $tempArray[1];
}
return $arrayOutput;
}
$arraySplit1 = splitArray($array_1);
$arraySplit2 = splitArray($array_2);
foreach ($arraySplit1 as $key1 => $value1) {
if (array_key_exists($key1, $arraySplit2)) {
$arraySplit1[$key1] = $arraySplit2[$key1];
}
}
print_r($arraySplit1);
See it working here:
http://3v4l.org/2BrVI
$array_1=array("1a-dogs","2a-cats","3a-birds","4a-people");
$array_2=array("4a-walking","2a-cats");
function merge_array($arr1, $arr2) {
$arr_tmp1 = array();
foreach($arr1 as $val) {
list($key, $val) = explode('-', $val);
$arr_tmp1[$key] = $val;
}
foreach($arr2 as $val) {
list($key, $val) = explode('-', $val);
if(array_key_exists($key, $arr_tmp1))
$arr_tmp1[$key] = $val;
}
return $arr_tmp1;
}
$result = merge_array($array_1, $array_2);
echo '<pre>';
print_r($result);
echo '</pre>';
This short code works properly, you'll get this result:
Array
(
[1a] => dogs
[2a] => cats
[3a] => birds
[4a] => walking
)
I am trying to get my head around arrays.
The arrays should look like this:
$questions[$a] => array( [0] => No, comment1
[1] => Yes, comment2
[2] => No, comment3 )
$answer[$a] => array( [0] => No
[1] => Yes
[3] => No )
$comment[$a] => array( [0] => comment1
[1] => comment2
[3] => comment3 )
=========================================================================
SECOND EDIT: Need to execute this in the loop to create a third array -
if($answer[$a] == "Yes") { $display[$a] = "style='display:none'";
} else { $display[$a] = "style='display:block'"; }
This is what i have: (28th for minitech)
while ($a > $count)
{
if($count > 11) {
foreach($questions as $q) {
list($answer, $comments[]) = explode(',', $q);
if($answer === "Yes") {
$display[$a] = "style='display:none'";
} else {
$display[$a] = "style='display:block'";
}
$answers[] = $answer;
}
}
$a++;
}
If they are actually strings, explode works:
$answers = array();
$comments = array();
$display = array();
foreach(array_slice($questions, 11) as $question) {
list($answer, $comments[]) = explode(',', $question);
$display[] = $answer === 'Yes' ? 'style="display: none"' : 'style="display: block"';
$answers[] = $answer;
}
Here’s a demo!
Change your while loop to this
while ...
{
$parts = explode(',', $questions[$a]);
$answer[$a][] = trim($parts[0]);
$comment[$a][] = trim($parts[1]);
}
In your original code you were overwriting the $answer[$a] and $comment[$a] each time, not appending to the end of an array
$questions[$a] = array('Q1?' => 'A1', 'Q2?' => 'A2', 'Q3?' => 'A3');
foreach($questions[$a] as $key => $value)
{
$comment[$a][] = $key;
$answer[$a][] = $value;
}
This should work.
foreach ($questions[$a] as $key=>$value){
$temp = explode(',',$value);
$answer[$key] = $temp[0];
$comment[$key] = $temp[1];
}
$key will have 0,1,2 respectively. $value will have the values for each $question[$a](No,Comment1 ....)
Can't think of a funky one-liner, but this should do it:
foreach ($questions as $a => $entries) {
foreach ($entries as $k => $entry) {
$parts = array_map('trim', explode(',', $entry));
$answer[$a][$k] = $parts[0];
$comment[$a][$k] = $parts[1];
}
}
$questions = array( 0 => 'No,comment1',1 => 'Yes,comment2',2 => 'No,comment3' );
foreach($questions as $question)
{
$parts = explode(",",$question);
$answer[] = $parts[0];
$comment[] = $parts[1];
}
echo "<pre>";
print_r($answer);
print_r($comment);
Here is the right answer
foreach($questions as $key => $question){
foreach($question as $q => $data){
$data= explode(',',$data);
$comments[$key][$q] = $data[0];
$answer[$key][$q] = $data[1];
}
}
If the values in $questions are comma-separated strings you could use an array_walk function to populate your $answer and $comment arrays
$question = array(...); //array storing values as described
$answer = array();
$comment = array();
array_walk($question, function ($value, $key) use ($answer,$comment) {
$value_array = explode(',', $value);
$answer[$key] = $value_array[0];
$comment[$key] = $value_array[1];
});
Note that this is shown using an anonymous function (closure) which requires PHP >= 5.3.0. If you had a lower version of PHP, you would need to declare a named function, and declare $answer and $comment as globals in the function. I think this is a hacky approach (using globals like this) so if I was using PHP < 5.3 I would probably just use a foreach loop like other answers to your question propose.
Functions like array_walk, array_filter and similar functions where callbacks are used are often great places to leverage the flexibility provided by anonymous functions.
Suppose I have two arrays like the following:
$arr2 = array(array("first", "second"), array("third", "fourth"));
$arr3 = array(array("fifth", "sixth", "seventh"), array("eighth", "ninth"), array("tenth", "eleventh"));
And I want a result like this:
$arr4 = array("first", "second", "third", "fourth", "fifth", "sixth", "seventh","eighth", "ninth","tenth", "eleventh" );
How to do that? in PHP
What you want to is flatten and combine the arrays. There's a nice function for flattening in the comments in the PHP manual of array_values, http://www.php.net/manual/en/function.array-values.php#104184
Here's the code:
/**
* Flattens an array, or returns FALSE on fail.
*/
function array_flatten($array) {
if (!is_array($array)) {
return FALSE;
}
$result = array();
foreach ($array as $key => $value) {
if (is_array($value)) {
$result = array_merge($result, array_flatten($value));
}
else {
$result[$key] = $value;
}
}
return $result;
}
Just run this on array($arr2, $arr3).
function flatten($ar,&$res) {
if (is_array($ar))
foreach ($ar as $e) flatten($e,$res);
else
$res[]=$ar;
}
$arr2 = array(array("first", "second"), array("third", "fourth"));
$arr3 = array(array("fifth", "sixth", "seventh"), array("eighth", "ninth"), array("tenth", "eleventh"));
$arr4=array();
flatten($arr2,$arr4);
flatten($arr3,$arr4);
I have a multidimensional array:
$array=array( 0=>array('text'=>'text1','desc'=>'blablabla'),
1=>array('text'=>'text2','desc'=>'blablabla'),
2=>array('text'=>'blablabla','desc'=>'blablabla'));
Is there a function to return a monodimensional array based on the $text values?
Example:
monoarray($array);
//returns: array(0=>'text1',1=>'text2',2=>'blablabla');
Maybe a built-in function?
This will return array with first values in inner arrays:
$ar = array_map('array_shift', $array);
For last values this will do:
$ar = array_map('array_pop', $array);
If you want to take another element from inner array's, you must wrote your own function (PHP 5.3 attitude):
$ar = array_map(function($a) {
return $a[(key you want to return)];
}, $array);
Do it like this:
function GetItOut($multiarray, $FindKey)
{
$result = array();
foreach($multiarray as $MultiKey => $array)
$result[$MultiKey] = $array[$FindKey];
return $result;
}
$Result = GetItOut($multiarray, 'text');
print_r($Result);
Easiest way is to define your own function, with a foreach loop. You could probably use one of the numerous php array functions, but it's probably not worth your time.
The foreach loop would look something like:
function monoarray($myArray) {
$output = array();
foreach($myArray as $key=>$value) {
if( $key == 'text' ) {
$output[] = $value;
}
}
return $output;
}
If the order of your keys never changes (i.e.: text is always the first one), you can use:
$new_array = array_map('current', $array);
Otherwise, you can use:
$new_array = array_map(function($val) {
return $val['text'];
}, $array);
Or:
$new_array = array();
foreach ($array as $val) {
$new_array[] = $val['text'];
}
Try this:
function monoarray($array)
{
$result = array();
if (is_array($array) === true)
{
foreach (new RecursiveIteratorIterator(new RecursiveArrayIterator($array)) as $value)
{
$result[] = $value;
}
}
return $result;
}
With PHP, you only have to use the function print_r();
So --> print_r($array);
Hope that will help you :D