How would I write a foreach loop that would print off all information with the following multidimensional array without using any functions:
$workers = array(
"Natalie" => array
("First term" => array(
"Subworker" => "Susan",
"Length" => '1900-2000',
"Notes" => "Finished all tasks"),
"Second term" => array(
"Subworker" => "Laura",
"Length" => '1985-1986'),
),
"Laura" => array(
"First term" => array(
"Subworker" => "Sarah",
"Length" => '1999-1992'),
),
"Carolyn" => array(
"First term" => array(
"Subworker" => "Jenny",
"Length" => '1900 -1945',
"Notes" => array
("Finished all tasks",
"Did not finish all tasks",
"Completed partial tasks" )
),
),
"Jacob" => array(
"First term" => array(
"Subworker" => "Danielle",
"Length" => '1993-1994',
"Notes" => "Finished all tasks"),
),
"Jenny" => array(
"First term" => array(
"Subworker" => "Angela",
"Length" => '1999 - 2001'),
"Second term" => array(
"Subworker" => array(
"Paula" => "Let Go",
"Steve" => "Hired"),
"Length" => '1987 - 1999',
"Notes" => "Hired"),
)
);
/****So far I've done the following, but it is not printing out everything. For example, it is not printing out under Jenny, Second term, Subworker Paula and Steve./*****
foreach($workers as $worker => $value) {
foreach ($value as $newkey => $info) {
echo $worker.':<br>'.$newkey.':<br>';
foreach ($value as $newkey) {
echo 'Subworker: '.$newkey["Subkey"].'<BR>';
foreach ($value as $newkey) {
echo 'Length: '.$newkey["Length"].'<BR>';
foreach ($value as $newkey) {
echo 'Notes: '.$newkey["Notes"].'<BR>';
}
}
}
}
}
It is necessary to cross by a function and to make small tests upstream, it is always useful to avoid the return of error in environment of dev. :)
I have to add lists (ul, li) for better one reading
if (is_array($workers) && !empty($workers)) {
echo loopArray($workers);
} else {
echo "<ul><li>".$workers."</li></ul>";
}
function loopArray($array)
{
$result = "";
$result .= "<ul>";
foreach ($array as $item => $value) {
if (is_array($value) && !empty($value)) {
$result .= "<li>".$item;
$result .= loopArray($value)."</li>";
} else {
$result .= "<ul><li>".$item.': '.$value."</li></ul>";
}
}
$result .= "</ul>";
return $result;
}
To print the particular array you've provided, without using functions:
// workers
foreach($workers as $worker => $workerarr) {
echo $worker.":<ul>\n";
// worker terms
foreach ($workerarr as $term => $terminfo) {
echo "<li>$term:<ul>\n";
// term info
foreach ($terminfo as $type => $typevalue) {
echo "<li>$type: ";
// is type value an array?
if ( is_array($typevalue) ) {
// if so, put in list
echo "<ul>\n";
foreach ($typevalue as $label => $value) {
$label = is_int($label)? '': "$label: "; // only print text
echo "<li>$label$value</li>\n";
}
echo "</ul>";
}
// if not...
else {
echo $typevalue;
}
echo "</li>\n";
}
echo "</ul></li>\n";
}
echo "</ul>";
}
Using unordered lists to help display the information in a readable manner. To see with only break tags as in the question, see PHP Sandbox - Original
PHP Sandbox - Unordered Lists
Related
I am new to web programming and I have such a complex posts all over my work this was the result for a var_dump($_POST) , I am using gettype() function to determine that if the value in the $arr array is another array or not , I am not convenient of such behave of code of mine , neither the problems that I always met when going to loop for insertion
the question is if there is smarter technique to loop within like this complex posts , secondly how to catch the name,phone in the 2d array that called assistant (called assistant['name'],assistant[phone])
<?php
$arr = array(
"name"=> "mmmkkkk",
"phones"=> array(
"01553338897" ,
"09090909098"
),
"address"=> "107 ostras., Germany",
"assistant"=> array(
"name" => array(
"kmkkm",
"komar"
),
"phone"=> array(
"01043338897" ,
"09099090090"
)
)
);
foreach($arr as $key => $p_value)
{
if(gettype($p_value)=="array")
{
echo $key.":"."</br>";
foreach($p_value as $newp_value => $val )
{
if(gettype($val)=="array")
{
foreach($val as $vkey)
{
echo $vkey."</br>";
}
}
else{echo $val."</br>";}
}
}else{echo $key.":".$p_value."</br>";}
}
?>
You can use Recursive function like this.
<?php
$arr = array(
"name"=> "mmmkkkk",
"phones"=> array(
"01553338897" ,
"09090909098"
),
"address"=> "107 ostras., Germany",
"assistant"=> array(
"name" => array(
"kmkkm",
"komar"
),
"phone"=> array(
"01043338897" ,
"09099090090"
)
)
);
function rec($arr) {
foreach($arr as $key => $p_value)
{
if (is_array($p_value)) {
rec($p_value);
} else {
echo $key.":".$p_value."\n";
}
}
}
rec($arr);
?>
Think recursive
function walkThrough($array, $tabulation = 0) {
foreach($array as $key => $value) {
printf ('%s%s:', str_repeat(4*$tabulation, ' '));
if (is_array($value)) walkThrough ( $value, ($tabulation+1) );
else printf('%s<br />', $value);
}
}
Use this Recursive function
function recursivefunc($arr,$key =''){
if(is_array($arr)){
foreach($arr as $k => $v){
if (is_array($v) && !empty($v)) {
recursivefunc($v,$k);
} else {
$keys = ($key=='') ? $k : $key;
echo $keys.":".$v.'</br>';
}
}
}
}
recursivefunc($arr);
Out put :
name:mmmkkkk
phones:01553338897
phones:09090909098
address:107 ostras., Germany
name:kmkkm
name:komar
phone:01043338897
phone:09099090090
I'm having a hard time wrapping my head around this one. I have an array with different keys/values, I want to do a loop that allows me to put in different code wrappings. I'm working with an array that I'm trying to get as an XML.
This is an example of what I have..
I have what came with the code commented out and what I'm trying to do just below it in the foreach
// Multidimensional array
$superheroes = array(
"spider-man" => array(
"name" => "Peter Parker",
"email" => "peterparker#mail.com",
),
"super-man" => array(
"name" => "Clark Kent",
"email" => "clarkkent#mail.com",
),
"iron-man" => array(
"name" => "Harry Potter",
"email" => "harrypotter#mail.com",
)
);
// Printing all the keys and values one by one
$keys = array_keys($superheroes);
for($i = 0; $i < count($superheroes); $i++) {
echo $keys[$i] . "{<br>";
foreach($superheroes[$keys[$i]] as $key => $value) {
// echo $key . " : " . $value . "------";
echo '<wp:meta_key>'.$value['email'].'<wp:meta_key>';
echo '<wp:meta_value><![CDATA['.$value['name'].']]></wp:meta_value>';
}
echo "}<br>";
}
This is how you iterate the array, two levels deep:
foreach($superheroes as $key => $hero) {
echo $key."\n";
foreach ($hero as $heroKey => $heroValue) {
echo "\t".$heroKey."=>".$heroValue."\n";
}
}
You will have to adjust it to your output, but im showing the concept. The first foreach iterates all the heroes, and the second foreach iterates all the key/value pairs of each hero
EDIT: Hold on, its a bit unclear what you actually want. Is this what you want?
foreach($superheroes as $key => $hero) {
echo $key."\n";
echo "\t".$hero['email']."\n";
echo "\t".$hero['name']."\n";
}
I'm trying to write a function that takes a multi-dimensional array as input and outputs a multi-line string of keys like the following
['key']['subkey']
['key']['another_subkey']
['key']['another_subkey']['subkey_under_subkey']
['key']['yet_another_subkey']
['another_key']['etc']
Here is my attempt. It has problems when you get to the second level.
function get_array_keys_as_string($array){
$output = "";
foreach($array as $k => $v){
if(is_array($v)){
$string = get_array_keys_as_string($v);
$prepend = "['$k']";
$string = $prepend.str_replace("\n","\n".$prepend, $string);
$output .= $string;
}
else{
$output .= "['$k']\n";
}
}
return $output;
}
I know I need a recursive function, but so far my attempts have come up short.
To get the exact output you asked for use the following:
$arr = array(
"key" => array(
"subkey" => 1,
"another_subkey" => array(
"subkey_under_subkey" => 1
),
"yet_another_subkey" => 1
),
"another_key" => array(
"etc" => 1
)
);
function print_keys_recursive($array, $path = false) {
foreach($array as $key=>$value) {
if(!is_array($value)) {
echo $path."[".$key."]<br/>";
} else {
if($path) {
echo $path."[".$key."]<br/>";
}
print_keys_recursive($value, $path."[".$key."]");
}
}
return;
}
print_keys_recursive($arr);
Output:
[key][subkey]
[key][another_subkey]
[key][another_subkey][subkey_under_subkey]
[key][yet_another_subkey]
[another_key][etc]
Not sure how you want the output since you have not provided an example array, just the result, but here is an example based on the following array,
$array = array(
"key" => array(
"subkey" => 1,
"another_subkey" => array("2", "subkey_under_subkey" => 3),
"yet_another_subkey" => 4
),
"another_key" => array("etc"),
"last_key" => 0
);
Using the following function,
function recursive_keys($arr, $history = NULL)
{
foreach ($arr as $key => $value)
{
if (is_array($value))
recursive_keys($value, $history."['".$key."']");
else
echo $history."['".$key."']\n";
}
}
Output of recursive_keys($array) is,
['key']['subkey']
['key']['another_subkey']['0']
['key']['another_subkey']['subkey_under_subkey']
['key']['yet_another_subkey']
['another_key']['0']
['last_key']
Try this
function arrayMultiKeys($array,$depth = 0){
foreach($array as $k=>$v){
echo "['".$k."']";
if(is_array($v)){
arrayMultiKeys($v,$depth + 1);
}
if($depth == 0 ){
echo "<br>";
}
}
}
I need to read nested arrays without knowing how the array will look.
For example;
$data = array(
'Data1_lvl1' => array(
'Data1_lvl2' => "value",
'Data2_lvl2' => array(
'Data1_lvl3' => "value"
)
),
'Data2_lvl1' => 'value'
);
Needs to be formatted to strings like:
Data1_lvl1/Data1_lvl2/
Data1_lvl1/Data2_lvl2/Data1_lvl3/
Data2_lvl1/
But the array can be of any size with any number of nested arrays inside it.
$data = array(
'Data1_lvl1' => array(
'Data1_lvl2' => "value",
'Data2_lvl2' => array(
'Data1_lvl3' => "value"
)
),
'Data2_lvl1' => 'value'
);
function printArray($array)
{
foreach ($array as $key=>$value)
{
echo $key.'/';
if (is_array($value))
{
printArray($value);
} else {
echo '<br>';
}
}
}
printArray($data);
If you want to output only the name of array elements then this recursive function will do the trick.
Your data:
$data = array(
'Data1_lvl1' => array(
'Data1_lvl2' => "value",
'Data2_lvl2' => array(
'Data1_lvl3' => "value"
)
),
'Data2_lvl1' => 'value'
);
Function:
function array2str($array, $str) {
foreach($array as $key => $val) {
if (is_array($val) ) {
$str .= $key . '/';
array2str($val, $str);
}
}
echo $str.'<br />';
return $str;
}
array2str($data);
As you can see the script does ECHO in itself with <br /> to break the line when viewing results in a browser.
One way would to walk recursively through array with function similar to this:
<?php
function f($d, $str = '') {
foreach ($d as $key => $val) {
if (is_array($val)) f($val, $str . '/' . $key); // If this element is array parse next level
else print_r($str . '/' . $key . '/'); // Output current string or do what you need to do with it..
}
}
$data = array(
'Data1_lvl1' => array(
'Data1_lvl2' => "value",
'Data2_lvl2' => array(
'Data1_lvl3' => "value"
)
),
'Data2_lvl1' => 'value'
);
f($data);
with that function:
<?php
function print_tree ($data, $prefix = '', &$index = 1) {
foreach($data as $key => $datum) {
echo $index++ . '. ' . ($new_prefix = $prefix . $key . '/') . PHP_EOL;
if (is_array($datum)) {
print_tree ($datum, $new_prefix, $index);
}
}
}
I get
Data1_lvl1/
Data1_lvl1/Data1_lvl2/
Data1_lvl1/Data2_lvl2/
Data1_lvl1/Data2_lvl2/Data1_lvl3/
Data2_lvl1/
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;
}
}
}
}