Loop through Array, with Similar items First in PHP

Loop through Array, with Similar items First in PHP - php

Array
(
[0] => Array
(
[intID] => 3
[intVolumeType] => 1
[intVolume] => 10
[totalVolumes] => 10
[intTrack] => 10
[intTrackType] => 2
[totalTracks] => 10
)
[1] => Array
(
[intID] => 4
[intVolumeType] => 2
[intVolume] => 100
[totalVolumes] => 200
[intTrack] => 111
[intTrackType] => 3
[totalTracks] => 222
)
)
I want to print above array as:
intVolumeType = 1
totalVolumes = 10
intVolumeType = 2
totalVolumes = 200
intTrackType = 2
totalTracks = 10
intTrackType = 3
totalTracks = 222
How to loop through this PHP array. There are total six elements in array. Which might increase upto 20. Print first Volume Information, than Track, and so on.Please help

try this here: http://phpfiddle.org/
<?php
$a = Array
(
0 => [
'intID' => 3,
"intVolumeType" => 1,
"intVolume" => 10,
"totalVolumes" => 10,
"intTrack" => 10,
"intTrackType" => 2,
"totalTracks" => 10,
],
1 => [
"intID" => 4,
"intVolumeType" => 2,
"intVolume" => 100,
"totalVolumes" => 200,
"intTrack" => 111,
"intTrackType" => 3,
"totalTracks" => 222,
]
);
/*echo "<pre>";
print_r( $a );
echo "</pre>";
*/
// you have to do it manually
$volume = "";
$track = "";
foreach ( $a as $item ) {
// preparing for volumes types
$volume .= "intVolumeType = " . $item['intVolumeType'] . "<br/>";
$volume .= "TotalVolumes = " . $item['totalVolumes'] . "<br/>";
// you can add other variables too
$volume .= "<br/>";
// preparing for track types
$track .= "intTrackType = " . $item['intTrackType'] . "<br/>";
$track .= "TotalTracks = " . $item['totalTracks'] . "<br/>";
// you can add other variables too
$track .= "<br/>";
}
echo $volume;
echo "===================<br/>";
echo $track;
?>

Related

Using array after POST

I would like to edit database entries with a simple form.
The id and name of each entry is fixed.
Problems:
After submitting the form $farray does only include the edited data of $array[3] not of the other records.
$farray doesn't include name and id (not included in the form). I need the id of the record for the query.
What could I use as a workaround?
Current script
<?php
$query = mysql_query("SELECT * FROM database");
$array = array();
while($row = mysql_fetch_assoc($query)){
$array[] = $row;
}
if(isset($_POST['send']))
{
$farray = $_POST['farray'];
foreach ($farray as $key => $value) {
echo('UPDATE database SET ' . $key . ' = "' . $value . '"' . ' WHERE id = ' . $farray['id']); //testing
}
}
?>
<form action=" <?=$_SERVER['PHP_SELF']?> " method="POST">
<?php
foreach($array as $key1){
echo $key1["name"] . "<br />";
foreach($key1 as $key => $value){
if ($key != "id" AND $key != "name") {
print $key.
' <input type="text" name="farray['.$key.']" value="'.$value.'"><br /><br />';
}
}
}
?>
<input type="submit" name="send" value="send">
</form>
Example $array
Array
(
[0] => Array
(
[id] => 0
[name] => name0
[1] => 1
[2] => 2
[3] => 3
)
[1] => Array
(
[id] => 1
[name] => name1
[1] => 1
[2] => 2
[3] => 3
)
[2] => Array
(
[id] => 2
[name] => name2
[1] => 1
[2] => 2
[3] => 3
)
[3] => Array
(
[id] => 3
[name] => name3
[1] => 1
[2] => 2
[3] => 3
)
)
Example $farray (after editing and submitting form)
Array
(
[1] => 10
[2] => 20
[3] => 30
)

OK, even though your table fields are not 1, 2, and 3, you just needed to change up your posted array a little. So I made you a little example:
<form method="post">
<?php
// Simulate DB records
$array = [
[
'id' => 0,
'name' => 'name0',
'1' => 1,
'2' => 2,
'3' => 3
],
[
'id' => 1,
'name' => 'name1',
'1' => 1,
'2' => 2,
'3' => 3
],
[
'id' => 2,
'name' => 'name2',
'1' => 1,
'2' => 2,
'3' => 3
]
];
// Create the input fields:
foreach( $array as $key1 )
{
echo $key1["name"] . "<br />";
foreach($key1 as $key => $value)
{
if ($key != "id" AND $key != "name")
{
echo $key.
' <input type="text" name="farray[' . $key1['id'] . ']['.$key.']" value="'.$value.'"><br /><br />';
}
}
}
?>
<button type="submit">Submit</button>
</form>
<pre>
<?php
if( isset( $_POST['farray'] ) )
{
print_r( $_POST );
foreach( $_POST['farray'] as $id => $values )
{
foreach( $values as $k => $v )
{
echo('UPDATE database SET ' . $k . ' = "' . $v . '"' . ' WHERE id = ' . $id ) . '<br />';
}
}
}
?>
</pre>
I tested this, and I think it works as you would expect.

Use array_search but continue searching after result found (PHP)

I have been playing around with array_search. I have been trying to search an array and get details from it. The problem is, once it finds the result it moves on, it doesn't check for duplicates in the array. I can't seem to work out my loop logic, any suggestions?
The $names array
Array(
[0] => Array
(
[name] => Fred
[age] => 20
)
[1] => Array
(
[name] => George
[age] => 17
)
[2] => Array
(
[name] => Sarah
[age] => 22
)
[3] => Array
(
[name] => Fred
[age] => 30
)
)
$name=" Fred";
//loop here
$array_position = array_search($name, array_column($names, 'name'));
$array_data = $names[$array_position];
echo $array_data['name'] . " is: " . $array_data['age'] . " years old.
//end loop
Result:
Fred is 20 years old.
Expected result:
Fred is 20 years old
Fred is 30 years old.
I tried array_keys() but I don't understand php.net very well
Should I try store the results in a separate array and then loop that to print? Seems like there should be a more efficient/elegant solution.

use array_filter to find all.
function search($array, $key)
{
return array_filter($array, function($v) use($key){return $v['name'] == $key;});
}
$result = search($array, $key);
foreach($result as $v)
{
echo $v['name'] . " is: " . $v['age'] . " years old.";
}

#Ben first of all array_search() return true or false not the key, but for your desired output you can simply try with foreach() with a condition like below or with array_key:
with foreach()
<?php
$names = array(0 =>
array(
"name" => "Fred",
"age" => 20
),
1 => array(
"name" => "George",
"age" => 17
),
2 => array(
"name" => "Sarah",
"age" => 22
),
3 => array(
"name" => "Fred",
"age" => 30
)
);
$name= "Fred";
echo "<pre>";
foreach($names as $val){
if($val["name"] == $name){
echo $name . " is: " . $val["age"] . " years old.\n";
}
}
with array_key()
<?php
$names = array(0 =>
array(
"name" => "Fred",
"age" => 20
),
1 => array(
"name" => "George",
"age" => 17
),
2 => array(
"name" => "Sarah",
"age" => 22
),
3 => array(
"name" => "Fred",
"age" => 30
)
);
$name=" Fred";
$array_position = array_keys(array_column($names, "name"), "Fred");
foreach($array_position as $key){
echo $names[$key]["name"] . " is: " . $names[$key]["age"] . " years old.\n";
}
OUTPUT:
Fred is: 20 years old.
Fred is: 30 years old.

What's wrong with a simple foreach loop?
// Declare the array
$names = array(
array(
'name' => 'Fred',
'age' => 20
),
array(
'name' => 'George',
'age' => 17
),
array(
'name' => 'Sarah',
'age' => 22
),
array(
'name' => 'Fred',
'age' => 30
)
);
// Name to search
$name = 'Fred';
foreach($names as $index => $data){
if($data['name'] == $name)
echo $data['name'] . ' is ' . $data['age'] . ' years old.<br>';
}
And the result would be:
Fred is 20 years old.
Fred is 30 years old.

array_keys() can do this:
<?php
$names = array(
array(
'name' => 'Fred',
'age' => 20
),
array(
'name' => 'George',
'age' => 17
),
array(
'name' => 'Sarah',
'age' => 22
),
array(
'name' => 'Fred',
'age' => 30
)
);
$matchKeys = array_keys( array_column($names, 'name'), 'Fred' );
array_map(function($arrKey) use ($names) {
echo $names[$arrKey]['name'] . " is: " . $names[$arrKey]['age'] . " years old.\n";
}, $matchKeys);
Result:
Fred is: 20 years old.
Fred is: 30 years old.

Array(
[0] => Array
(
[name] => Fred,
[age] => 20
),
[1] => Array
(
[name] => George,
[age] => 17
),
[2] => Array
(
[name] => Sarah,
[age] => 22
),
[3] => Array
(
[name] => Fred,
[age] => 30
)
)
$name="Fred";
//loop here
for($i =0; i<count($names); $i++){
if($arr[$i] == $name)echo $name . ' is ' . $names[$i] ."years old.<br>";
}
//end loop
Output:
Fred is 20 years old
Fred is 30 years old

This can help -
$check_name= 'Fred'; // set the name to check
$temp= array_filter($names, function($a) use($check_name) {
return $a['name'] === $check_name; // return if matches
});
// loop through the result
foreach($temp as $v) {
echo $v['name'] . ' is ' . $v['age'] . ' years old.<br>';
}
Output
Fred is 20 years old.
Fred is 30 years old.
Working code
Anonymous function & use keyword

I dont understand why you gave space in $name variable
$name = " Fred";
Here is your code,
$name=" Fred";
function array_search_custom($needle,$haystack) {
$temp = [];
foreach($haystack as $key=>$value) {
if(trim($needle)===trim($value)) {
$temp[] =$key;
}
}
return $temp;
}
$name=" Fred";
$a_names = array_column($names, 'name');
$a_ages = array_column($names, 'age');
$array_position = array_search_custom($name, $a_names);
foreach($a_names as $k => $v){
if($array_position && in_array($k, $array_position)){
echo $a_names[$k] . " is: " . $a_ages[$k] . " years old.<br/>";
}
}
I trimmed your name and wrote custom array search function as per your requirement.
Give it a try, it will work.

combine and add data in one array index?

Implode multidimensional array with different glue in php

I have array like below:
Array
(
[22] => Array
(
[0] => 60
[29] => Array
(
[0] => 6
)
[30] => Array
(
[0] => 5
[1] => 8
)
[31] => Array
(
[0] => 7
[1] => 9
[2] => 14
[3] => 26
)
)
[23] => 12
[35] =>10
[42] =>22
)
now i want to implode array like
60[6][5||8][7||9||14||26]|12|10|22
I have tried below code:
$arr = array_map(function($el){ return $el['tag_id']; }, $arr);
$str = implode(',', $arr);
But it is not implode with required glue
How can i do it?

you can use this code
<?php
$a= Array(
22 => Array(
0 => 60,
29 => Array(
0 => 6
),
30 => Array
(
0 => 5,
1 => 8
),
31 => Array
(
0 => 7,
1 => 9,
2 => 14,
3 => 26
),
),
23 => 12,
35 =>10,
42 =>22,
);
$string='';
foreach($a as $arr){
if(is_array($arr)){
foreach($arr as $array){
if(is_array($array)){
$string .= '['.implode("||",$array).']';
}else{
if($string!==''){ $string .= '|';}
$string .= $array;
}
}
}else{
if($string!==''){ $string .= '|';}
$string .= $arr;
}
}
echo $string;die;
?>
Out put wil be
60[6][5||8][7||9||14||26]|12|10|22

Desired result without foreach.
$array = [
22 => [
0 => 60,
29 => [
0 => 6
],
30 => [
0 => 5,
1 => 8
],
31 => [
0 => 7,
1 => 9,
2 => 14,
3 => 26
]
],
23 => 12,
35 => 10,
42 => 22
];
$result = implode('|', array_map(function($item)
{
return is_array($item) // convert sub array into string
? implode('', array_map(function($inner_item)
{
return is_array($inner_item) // convert inner array into string
? '[' . implode('||', $inner_item) . ']'
: $inner_item;
}, $item))
: $item;
}, $array));
var_dump($result);
So, we have 3 types of delimiters: '|' - first level, ''(empty) - second level, '||' - third level.

You can use foreach and implode to achieve your pattern:
<?php
header('Content-Type: text/plain');
$arr = array();
$arr22 = array();
$arr22[0] = 60;
$arr22[29] = array(6);
$arr22[30] = array(5,8);
$arr22[31] = array(7,9,14,26);
$arr[22] = $arr22;
$arr[23] = 12;
$arr[35] = 10;
$arr[42] = 22;
$output = '';
foreach($arr as $entry) {
if(!is_array($entry)) {
$output .= $entry;
} else {
// array
foreach($entry as $inner) {
if(is_array($inner)) {
$output .= '[' . implode('||', $inner) . ']';
} else {
$output .= $inner;
}
}
}
$output .= '|';
}
echo substr($output, 0, strlen($output) - 1);
?>
which outputs:
60[6][5||8][7||9||14||26]|12|10|22

This should work for you:
Here the glue is configurable as you desired and this logic is built on the recursive call hence this will work for any level of multidimensional array:
<?php
$arrVal = array (
'22' => array(
'0' => 60,
'29' => array(
'0' => 6
),
'30' => array (
'0' => 5,
'1' => 8
),
'31' => array (
'0' => 7,
'1' => 9,
'2' => 14,
'3' => 26
)
),
'23' => 12,
'35' => 10,
'42' => 22
);
//60[6][5||8][7||9||14||26]|12|10|22
$constructedValue = "";
$glue = "||";
echo $constructedValue = implodeMultiArr($arrVal,$glue);
function implodeMultiArr($arrVal,$glue) {
$i = 0;
$constructedValue = "";
foreach ( $arrVal as $k=>$v) {
if ( is_array($v) ) {
$constructedValue .= !empty($constructedValue) ? "[".implodeMultiArr($v,$glue)."]" : implodeMultiArr($v,$glue)."]" ;
} else {
$constructedValue .= !empty($constructedValue) ? $glue.$v : $v ;
}
$i++;
}
return $constructedValue;
}

Implode array giving out error

I'm trying to implode an array to perform insertion , but i couldn't trigger the error i did.
implode() [function.implode]: Invalid arguments passed
*Please note my array size is not fix so i used foreach*
Array structure
[attcode] => Array ( [0] => [1] => [2] => )
[color] => Array ( [0] => [1] => [2] => )
[size] => Array ( [0] => [1] => [2] => )
[stock] => Array ( [0] => [1] => [2] => )
Working code
$attstring = array();//array for storing query set
foreach($productcount['attcode'] as $attcode){
$attstring[] = "'" . implode("','", $attcode)."'";
}
foreach($productcount['color'] as $attcolor){
$attstring[] = "'" . implode("','", $attcolor)."'";
}
foreach($productcount['size'] as $attsize){
$attstring[] = "'" . implode("','", $attsize)."'";
}
foreach($productcount['stock'] as $attstock){
$attstring[] = "'" . implode("','", $attstock) . "'";
}
$finalvalue = "(" . implode("), (", $attstring) . ")";
echo $finalvalue;
Desired output
('code','color','size',stock),
('code','color','size',stock),
('code','color','size',stock)

Your array structure does not fit the desired output format. So implode won't work.
<?php
$my_array = ARRAY();
$my_array['attcode'] = Array ( 0 => 0, 1 => 1, 2 => 2);
$my_array['color'] = Array ( 0 => 'red', 1 => 'green', 2 => 'blue');
$my_array['size'] = Array ( 0 => 100, 1 => 200, 2 => 300);
$my_array['stock'] = Array ( 0 => 11, 1 => 22, 2 => 33);
$loop_me = count($my_array['attcode']) - 1;
for ($i=0; $i<=$loop_me; $i++) {
echo '<div>Code: '.$my_array['attcode'][$i].' | Color: '.$my_array['color'][$i].' | Size: '.$my_array['size'][$i].' | Stock: '.$my_array['stock'][$i].'</div>';
}
?>
Output
Code: 0 | Color: red | Size: 100 | Stock: 11 |
Code: 1 | Color: green | Size: 200 | Stock: 22 |
Code: 2 | Color: blue | Size: 300 | Stock: 33 |

Try:
implode(',', $productcount['attcode']);
//same for others

implode works with arrays not it's values, it appends the desired string with array elements. You are passing array value to implode. pls check this for detail

You left out the most important part of the error message; where it says that implode expects an array and that you've passed a string. Based on the desired output, I reckon you want something like this:
<?php
$productcount = array(
'attcode' => array ( '0', '1', '2' ),
'color' => array ( 'red', 'green', 'blue' ),
'size' => array( '0', '1', '2' ),
'stock' => array ( 100, 200, 300 )
);
$outcome = array( );
foreach( $productcount['attcode'] as $index => $code ) {
$outcome[] = array(
'attcode' => $code,
'color' => isset( $productcount['color'][$index] ) ? $productcount['color'][$index] : null,
'size' => isset( $productcount['size'][$index] ) ? $productcount['size'][$index] : null,
'stock' => isset( $productcount['stock'][$index] ) ? $productcount['stock'][$index] : null
);
}
var_dump( $outcome );

http://php.net/manual/en/function.implode.php
$attstring = array();//array for storing query set
foreach($productcount as $attributeCount){
$attstring[] = "'" . implode("','", $attributeCount)."'";
}
$finalvalue = "(" . implode("), (", $attstring) . ")";
echo $finalvalue;

I think you've build the wrong array for the output you want:
$products = array();
$products[] = array('attrcode' => 'XXXX', 'color' => 'black', 'size' => '12', 'stock' => 'yes');
$products[] = array('attrcode' => 'XXXX', 'color' => 'white', 'size' => '5', 'stock' => 'no');
$imploded_products = array();
foreach ($products as $product) {
$imploded_products[] = "'".implode("','", $product)."'";
}
$finalvalue = "(".implode("), (", $imploded_products).")";
echo $finalvalue;

We Keep Coding

PHP, A popular general-purpose scripting language that is especially suited to web development.

Loop through Array, with Similar items First in PHP - php

Related

Using array after POST

Use array_search but continue searching after result found (PHP)

combine and add data in one array index?

Implode multidimensional array with different glue in php

Implode array giving out error

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