I'm trying to mix arrays values to display in order:
$array_one = array('a','b','c');
$array_two = array('1','2','3','4','5');
The result should be:
array('a','1','b','2','c','3','4','5');
Thank you.
This gives you what you want
$array_one = array('a','b','c');
$array_two = array('1','2','3','4','5');
$maxCount = max(array(count($array_one),count($array_two)));
$result = array();
for ($i=0; $i < $maxCount; $i++) {
if (!empty($array_one[$i])) {
$result[] = $array_one[$i];
}
if (!empty($array_two[$i])) {
$result[] = $array_two[$i];
}
}
var_dump($result);
Output
array(8) {
[0]=>
string(1) "a"
[1]=>
string(1) "1"
[2]=>
string(1) "b"
[3]=>
string(1) "2"
[4]=>
string(1) "c"
[5]=>
string(1) "3"
[6]=>
string(1) "4"
[7]=>
string(1) "5"
}
If both arrays have the same number of elements you could use array_walk and array_combine to create what you want.
$array_one = array('a','b','c','d','e');
$array_two = array('1','2','3','4','5');
$combined_array = array_combine($array_one, $array_two);
array_walk($combined_array, create_function('$value, $key', 'echo "$key $value ";'));
Hi #andrei you first find the length of both arrays, create a new array for the result,use two for loops in the inner loop just assign the values in new array and increment the loops. hope it give you expected result.
Related
I have multiple arrays. I want to compare these arrays key values with one another and output only one array which has the higher value than others. Here is my array
array(4) { ["type"]=> string(6) "Person" ["relevance"]=> string(8) "0.645481" ["count"]=> string(1) "1" ["text"]=> string(15) "RAJESH NELATURI" }
array(4) { ["type"]=> string(6) "Person" ["relevance"]=> string(8) "0.567918" ["count"]=> string(1) "2" ["text"]=> string(11) "Layoutlands" }
array(4) { ["type"]=> string(6) "Person" ["relevance"]=> string(8) "0.546824" ["count"]=> string(1) "1" ["text"]=> string(9) "N. Rajesh" }
I want to compare the key "relevance" and filter the array which has higher relevance value. In this case The first array which has the value "0.645481" and print the arrays key[text]. Here it should print RAJESH NELATURI
Here is a solution :
$higher = array('relevance' => 0);
foreach($myArray as $key) {
if($key['relevance'] > $higher['relevance']){
$higher = $key;
}
}
At the end, $higher will have the biggest relevance and is equal to :
$higher = array(4) { ["type"]=> string(6) "Person" ["relevance"]=> string(8) "0.645481" ["count"]=> string(1) "1" ["text"]=> string(15) "RAJESH NELATURI" }
now you can print the higher text :
echo $higher['text'];
UPDATE:
But it seems all 'relevance' values in your array are string, So they can not be compared with each other! you have to change them to float,
Try to produce this array in another way to have float values,
If you can't, Try this code instead :
$higher = array('relevance' => 0);
foreach($myArray as $key) {
if((float)$key['relevance'] > (float)$higher['relevance']){
$higher = $key;
}
}
this code changes string to float before compare.
find the relevance with max value, and the index. Here is the code, hope it helps.
$relevances = array_column($array, 'relevance');
$values = array_values($relevances);
$map = array_combine($values, array_keys($$relevances));
echo $array[$map[max($values)]]['text'];
Iterate through the arrays in a replace-if-higher basis.
$currentMax = PHP_INT_MIN; // it is impossible for any entries to be smaller than this value
foreach($arrays as $array){
$keyValue = $array["relevance"]; // not exactly sure what you mean by "key value"
if($keyValue > $currentMax){
$currentMax = $keyValue;
$currentName = $array["text"]'
}
}
$currentName should be set as lonig as $arrays is not empty and the $keyValue of any entries is greater than PHP_INT_MIN.
I want if the first number in the string is 2 the output will be 2 array. How to explode as each array from string.
My code
<?php
$str = "2,2;2;,1;1;,07-09-2016;07-09-2016;,08-09-2016;10-09-2016;,1;3;,100.00;450.00;";
$data = explode(',',$str);
$out = array();
for($i=1;$i < count($data)-1;$i++){
$out[]= explode(';',$data[$i]);
}
$i = $out[0][0];
foreach ($out as $key => $value) {
for($a=0;$a < $i; $a++){
echo $value[$a]. "<br/>";
}
}
?>
I get the result 221107-09-201607-09-201608-09-201610-09-201613
But I want this format
<?php
$str = "2,2;2;,1;1;,07-09-2016;07-09-2016;,08-09-2016;10-09-2016;,1;3;,100.00;450.00;";
//format will be split by semicomma ;
$arr1 = Array('2','1','07-09-2016','08-09-2016','1','100.00');
$arr2 = Array('2','1','07-09-2016','10-09-2016','3','450.00');
?>
The php function array_column will come in handy here. Here is short code example that should output what you are looking for.
<?php
//Your original input
$str = "2,2;2;,1;1;,07-09-2016;07-09-2016;,08-09-2016;10-09-2016;,1;3;,100.00;450.00";
//explode the array into its sub-arrays
$arrs = explode(",", $str);
//remove the first element that sets how many elements are in each array
$numArrs = array_shift($arrs);
//convert strings into those wanted sub-arrays
array_walk($arrs, function(&$val, $key) { $val = explode(';',$val); });
//make the answer we need
$ans = array();
for($i=0; $i<$numArrs; $i++) {
//array_column does all the work that we want, making life easy
$ans[] = array_column($arrs, $i);
}
var_dump($ans);
This process does assume the string is properly formatted for what we are looking for - it will fail horribly if that is not the case.
Use the explode() function! It's really cool.
Here's how I would solve this problem. You will end up with a 2d array with my code. You can access $arr1 with $fourthStep[0] and $arr2 with $fourthStep[1] etc...
<?php
$str = "2,2;2;,1;1;,07-09-2016;07-09-2016;,08-09-2016;10-09-2016;,1;3;,100.00;450.00;";
$fourthStep = array();
//First, let's split that string up into something a little more.. readable.
$firstStep = explode(",",$str);
//$firstStep[0] contains our count for the total array count.
foreach($firstStep as $secondStep){ //Our second step is to loop through the newly created array which splits each section of your array
if ($secondStep != $firstStep[0]){ //skip the first part, as that is only telling us of array count
$thirdStep = explode(";",$secondStep); //third step is to get each data part of each section. The count of this array should be 'firstStep[0]-1'
for($i = 0; $i<$firstStep[0]; $i++){
//Now we want to assign the values into a 2D array
$fourthStep[$i][count($fourthStep[$i])] = $thirdStep[$i];
}
}
}
var_dump($fourthStep);
?>
Result:
array(2) { [0]=> array(6) { [0]=> string(1) "2" [1]=> string(1) "1" [2]=> string(10) "07-09-2016" [3]=> string(10) "08-09-2016" [4]=> string(1) "1" [5]=> string(6) "100.00" } [1]=> array(6) { [0]=> string(1) "2" [1]=> string(1) "1" [2]=> string(10) "07-09-2016" [3]=> string(10) "10-09-2016" [4]=> string(1) "3" [5]=> string(6) "450.00" } }
Just for a further note, you don't need the '2' in the first part of your string to work out how many arrays to split it into, as they use 2 different seperators you can work it out quite easily. Save like 8 bits of space or somethin'
I´ve got a question about compairing two (text)arrays. I obtained two arrays from a loop containing numbers as shown below:
array(96) { [1]=> string(2) "20" [2]=> string(2) "18" [3]=> string(2)...
array(96) { [1]=> string(3) "135" [2]=> string(3) "103" [3]=> string(2) "88"
What I want is a new array which contains the difference of the values (1-2). This means that the 2 arrays above will results in the following new (text)array
array(96) { [1]=> string(3) "-115" [2]=> string(3) "-85" [3]=> string(2)
Can someone help me?
You could do this with one foreach-loop. And then substract them from each other. You just need the same count of elements in $array and in $array2.
$new = array();
foreach($array as $key => $val) {
$new[] = (string) ($val - $array2[$key]);
}
If it doesn't matter if the values are integers, you can remove the type casting (string).
this is a function,
function foo($array1, $array2){
$resultArray = array();
for($i=0; i<count($array1); $i++){
$resultArray[] = (string)((int)$array1[$i] - (int)$array2[$i]);
}
return $resultArray;
}
Hope this will help :)
<?php
$a=array(20,18);
$b=array(135,103);
function fr($d,$d1){
global $c;
$c[]=$d-$d1;
}
array_map('fr',$a,$b);
var_dump($c);
I read some words from a text file, storing each word as an array element using the file() function. Now I need to sort each word and create an associative array that stores the sorted strings as keys and the original strings as values like so :
$hash_table = array( 'sorted_string' => 'original string' );
I loop through every word read from the file and sort it in ascending order but when it comes to pushing it to the associative array, I am completely lost. Can anyone show me how to create the associative array ?
$a = array('green', 'yellow', 'red');//actual
$b = array('green', 'yellow', 'red');
sort($b); //sorted
$c = array_combine($b, $a);
If I understand your question right, consider this:
$sorted; //sorted array
$original; //original array
foreach($sorted as $key){
$index = 0;
$new_array[$key] = $original[$index++];
}
Here is what you want:
<?php
//create an array with words, similar to what you get with file()
$str = "here is a list of random words that will be sorted";
$array = explode(" ", $str);
//a place to store the result
$result = array();
//check each value
foreach($array as $word) {
//str_split will create an array from a string
$letters = str_split(trim($word));
//sort the letters
sort($letters);
//implode the letters again to a single word
$sorted = implode($letters);
//add to result
$result[$sorted] = $word;
}
//dump
var_dump($result);
//sort on the key
ksort($result);
//dump
var_dump($result);
?>
This will output
//unsorted
array(11) {
["eehr"]=>
string(4) "here"
["is"]=>
string(2) "is"
["a"]=>
string(1) "a"
["ilst"]=>
string(4) "list"
["fo"]=>
string(2) "of"
["admnor"]=>
string(6) "random"
["dorsw"]=>
string(5) "words"
["ahtt"]=>
string(4) "that"
["illw"]=>
string(4) "will"
["be"]=>
string(2) "be"
["deorst"]=>
string(6) "sorted"
}
//sorted on key
array(11) {
["a"]=>
string(1) "a"
["admnor"]=>
string(6) "random"
["ahtt"]=>
string(4) "that"
["be"]=>
string(2) "be"
["deorst"]=>
string(6) "sorted"
["dorsw"]=>
string(5) "words"
["eehr"]=>
string(4) "here"
["fo"]=>
string(2) "of"
["illw"]=>
string(4) "will"
["ilst"]=>
string(4) "list"
["is"]=>
string(2) "is"
}
This question already has answers here:
Transposing multidimensional arrays in PHP
(12 answers)
Closed 1 year ago.
I am creating an array from several text boxes. I am needing to move the elements in the array to insert into the database. Here is the array:
array(2) { [0]=> string(7) "nameone" [1]=> string(7) "nametwo" }
array(2) { [0]=> string(6) "ageone" [1]=> string(6) "agetwo" }
array(2) { [0]=> string(13) "parentnameone" [1]=> string(13) "parentnametwo" }
array(2) { [0]=> string(14) "parentemailone" [1]=> string(14) "parentemailtwo" }
array(2) { [0]=> string(14) "parentphoneone" [1]=> string(14) "parentphonetwo" }
I want to end up with an insert statement such as:
nameone, ageone, parentnameone, parentemailone, parentphoneone
and next row to insert would be
nametwo, agetwo, parentnametwo, parentemailtwo, parentphonetwo
I have tried to create an array with multiple for each loops but I end up with an array that i need to move the keys which brings be back to my original problem.
Is there a method to this madnaess?
Well, lets say your main array contains 5 arrays with 2 elements each. Lets call that $mainArr. "2" in the first line is no. of elements in each subarray. or if the subarraays are not of equal lengths, then the its the length of the largest subarray.
for($i=0;$i<2;$i++) {
foreach($mainArr as $key => $a) {
$ins[$i][] = $a[$i];
} // form an array with insert elements
}
// traverse that to form inserts
foreach($ins as $key => $arr) {
$statements[] = implode(",", $ins[$key]);
}
echo '<pre>';
print_r($statements);
I think thats what you want. If not, let me know. Hope that helps!
$l = count($array[0]);
for ($i=0; $i<$l; $i++) {
// access values like this:
$name = $array[0][$i]; // equals nameone first time and nametwo second time
$age = $array[1][$i];
$parentname = $array[2][$i];
$parentemail = $array[3][$i];
$parentphone = $array[3][$i];
// insert into DB here
}
#!/usr/bin/php
<?php
$val = array('name', 'age', 'parentname', 'parentemail');
$key = array('one', 'two', 'three', 'four', 'five');
$valone = array();
foreach ($val as $k)
array_push($valone, $k.$key[0]);
var_dump($valone);
?>
Outputs :
array(4) {
[0]=>
string(7) "nameone"
[1]=>
string(6) "ageone"
[2]=>
string(13) "parentnameone"
[3]=>
string(14) "parentemailone"
}
Is this what you want you to do ?