I have a text file from where I parse all lines with the label blue:
foreach($colors as $row) {
if (array_key_exists('blue',$row)){
echo "blue:".$row['blue']."<br>";
}
}
My result:
blue:sky
blue:ocean
blue:orchid
Now I want to count my result. Do I have to put the result into an array before counting?
I tried count($colors); but then of course I get the number of all colors in my text file. I also tried count($row['blue']); but then my result is 0.
Either put the result in an array and print out count() or increment a variable:
Solution 1: (storing the values in an array)
$result = array();
foreach($colors as $row) {
if (array_key_exists('blue',$row)){
$result[] = $row['blue'];
}
}
// after your foreach loop
echo "Results: " . count($result);
Solution 2: (incrementing a variable)
$i = 0;
foreach($colors as $row) {
if (array_key_exists('blue',$row)){
$i++;
echo "blue:".$row['blue']."<br>";
}
}
// after your foreach loop
echo "Results: $i";
Related
I'm pulling data from mssql database into an array called
$results2
I need to echo out each 'Item' only one time, so this example should only echo out:
"52PTC84C25" and "0118SGUANN-R"
I can do this easily with:
$uniqueItems = array_unique(array_map(function ($i) { return $i['ITEM']; }, $results2));
The issue is when i try to echo out the other items associated with those values. I'm not sure how to even begin on echoing this data. I've tried:
foreach($uniquePids as $items)
{
echo $items."<br />";
foreach($results2 as $row)
{
echo $row['STK_ROOM']."-".$row['BIN']."<br />";
}
}
This returns close to what I need, but not exactly:
This is what I need:
Assuming your resultset is ordered by ITEM...
$item = null; // set non-matching default value
foreach ($results2 as $row) {
if($row['ITEM'] != $item) {
echo "{$row['ITEM']}<br>"; // only echo first occurrence
}
echo "{$row['STK_ROOM']}-{$row['BIN']}<br>";
$item = $row['ITEM']; // update temp variable
}
The if condition in the code will check if the ITEM has already been printed or not.
$ary = array();
foreach($results2 as $row)
{
if(!in_array($row['ITEM'], $ary))
{
echo $row['STK_ROOM']."-".$row['BIN']."<br />";
$ary[] = $row['ITEM'];
}
}
My Script :
<?php
$values='Product1,54,3,888888l,Product2,54,3,888888l,';
$exp_string=explode(",",$values);
$f=0;
foreach($exp_string as $exp_strings)
{
echo "".$f." - ".$exp_string[$f]." ";
if ($f%3==0)
{
print "<br><hr><br>";
}
$f++;
}
?>
With this code i want show data inside loop, the idea it´s show all information in groups the elements in each group it´s 4 elements and must show as this :
Results :
Group 1 :
Product1,54€,3,green
Group 2:
Product2,56€,12,red
The problem it´s i don´t know why, don´t show as i want, and for example show separate some elements and not in group, thank´s , regards
It looks like you are trying to combine elements of a for loop and a foreach loop.
Here is an example of each, pulled from the php manual:
For Loop
for($index = 0, $index < size($array), $index++ {
//Run Code
//retrieve elements from $array with $array[$index]
}
Foreach
$arr = array(1, 2, 3, 4);
foreach ($arr as &$value) {
$value = $value * 2;
}
It's hard for me to understand what your input looks like. If you post an example of $exp_strings, I could be of better assistance. But from the sound of your question, if $exp_strings is multidimensional if you need to loop through groups of items, you could try nesting one loop inside another loop like so:
$groups_of_data = array(array(...), array(...), array(...));
for($i = 0, $i < size($groups_of_data), $i++) {
$group = $i;
for($j = 0, $j < size($groups_of_data[$i]), $j++) {
// print out data related to group $i
}
}
This is really all guesswork on my part though as I can't see what your input string/array is. Can you post that? Maybe I can be of more help.
here is code i worked out. it was kind of since i did't know what object $exp_string is. if it's a string you should tokenize it, but i think it's array from database. there was another problem, with your code where it tries to output $exp_string[$f] it should be $exp_strings what changes in the loop.
my code
$exp_string=array("Product"=>54,"price"=>3,"color"=>"green");
$f=0;
foreach($exp_string as $key => $exp_strings)
{
if($f%3==0)
{
print "<br><hr><br>";
echo "Product ".$exp_strings."<br> ";
}
else if($f%3==1)
{
echo "Price ".$exp_strings."<br> ";
}
else if($f%3==2)
{
echo "Color ".$exp_strings."<br> ";
}
$f++;
}
hope it's any help, maybe not what you wanted.
$values='Product1,1,2,3,Product2,1,2,3,Product3,1,2,3';
$products = (function($values) {
$exp_string = explode(',', $values);
$products = [];
for ($i=0; $i+3<count($exp_string); $i+=4) {
$product = [
'title' => $exp_string[$i],
'price' => $exp_string[$i+1],
'color' => $exp_string[$i+2],
'num' => $exp_string[$i+3],
];
array_push($products, $product);
}
return $products;
})($values);
/* var_dump($products); */
foreach($products as $product) {
echo "{$product['title']},{$product['price']},{$product['color']},{$product['num']}<br>";
}
Using PHP and MySQL I have generated two arrays. I would like to loop through these arrays, retrieve data from both and display together in one sentence.
foreach ($items as $item) {
if(isset($item->item_title)) {
$itemTitle = $item->item_title;
}
// var_dump($itemTitle);
// string(7) "Halfway" string(5) "Story" string(6) "Listen"
}
foreach ($aData["Items"]["Item"] as $a) {
if (isset($a['description'])) {
$aDescription = $a['description'];
}
// var_dump($aDescription );
// string(4) "Good" string(6) "Strong" string(2) "OK"
}
?>
Desired result;
The title is Halfway and the description is Good.
The title is Story and the description is Strong.
The title is Listen and the description is OK.
// etc
// etc
Is it possible to nest the foreach loops, or is there a better more efficient way?
Please try this way. Hope this help!!
foreach ($items as $index => $item) {
if(isset($item->item_title)) {
$itemTitle = $item->item_title;
echo 'The title is '.$itemTitle;
}
if(isset($aData["Items"]["Item"][$index]['description']) {
$itemDescription = $aData["Items"]["Item"][$index]['description'];
echo ' and the description is '.$itemDescription;
}
echo '<br>';
// The title is Halfway and the description is Good.
}
You can merge those two foreach loops using a simple for loop, like this:
$count = count($items) >= count($aData["Items"]["Item"]) ? count($aData["Items"]["Item"]) : count($items);
for($i = 0; $i < $count; ++$i){
if(isset($item[$i]->item_title)) {
$itemTitle = $item[$i]->item_title;
}
if (isset($aData["Items"]["Item"][$i]['description'])) {
$aDescription = $aData["Items"]["Item"][$i]['description'];
}
// your code
}
Sidenote: The above code assumes that two arrays $items and $aData["Items"]["Item"] have unequal number of elements, though this will work for equal number of elements as well. If you're sure that these two arrays will always have equal number of elements, then refactor the $count = ... ; statement in the following way,
$count = count($items);
or
$count = count($aData["Items"]["Item"]);
and use this $count variable in for loop.
Try this hope this will help you out.
Note: Here i am assuming both array's have same indexes.
$items
$aData["Items"]["Item"].
If not you can do array_values($items) and array_values($aData["Items"]["Item"])
foreach ($items as $key => $item)
{
if (isset($item->item_title) && isset($aData["Items"]["Item"][$key]['description']))
{
$itemTitle = $item->item_title;
echo sprinf("The title is %s and the description is %s",$itemTitle,$aData["Items"]["Item"][$key]['description']);
echo PHP_EOL;
}
}
The following code works and pulls all the images in from the json file.
$content = file_get_contents('URL');
$json = json_decode($content, true);
foreach($json['format'] as $item) {
echo '<img src="' . $item['picture'] . '">';
}
Is there a way that I can have it only grab the last two pictures.
Yes, there is a way.
$result = array_slice($json['format'], -2);
Have a try.
Use this:
$numItems = count(foreach($json['format']);
$i = 0;
foreach($json['format'] as $item) {
if(++$i === $numItems-1) {
result1 = $json['format'][$i]
echo "first picture!";
} if(++$i === $numItems) {
result2 = $json['format'][$i]
echo "second picture!";
}
}
And result1 and result2 is your pictures
You can reverse the order of the array, run it backwards in your foreach loop, grab the first two then break.
$reversed = array_reverse($json);
$counter = 0;
foreach ($reversed['format'] as $item) {
if ($counter == 2) {
break;
}
//your echo image code
++$counter;
}
My version using array_pop:
$content = file_get_contents('URL');
$json = json_decode($content, true);
// take last element of array, array reduces by 1 element
$last = array_pop($json['format']);
print_r($last);
// take last element of array again, array reduces by 1 element
$last = array_pop($json['format']);
print_r($last);
// Beware - using `$json['format']` later means that
// you use array without two last elements
i have data from php loop foreach like this
foreach ($query->result() as $row) {
echo $row->name;
}
how to make the result show only the end data without remove others if data has same (if data have same value, hide all except the last one) like this:
*sorry bad english, this is the first time i ask here. thank you
Online Check, This is just a demo example.
See below the real example:
At first you need to use array_search for get the position of the same data, if exist then just remove it using $arr[$pos] = '';, and each and every time you need to import data into the new array called $arr and after completing fetching data you need to use a foreach loop to print them.
$arr = array();
foreach($query->result() as $row){
$pos = array_search($row->name, $arr);
if($pos !== false)
$arr[$pos] = '';
$arr[] = $row->name;
}
foreach($arr as $val){
echo $val.'<br/>';
}
Check this and let me know.
The data_seek method might help. This assumes your array is reasonable ordered to begin with.
$rowCount = 0;
$res = $query->result();
foreach($res as $row) {
if ($rowCount < $res->num_rows - 1) {
// set internal pointer to next row
$res->data_seek($rowCount + 1);
// if the row names match, print an empty string
// otherwise print the current name
$nextRow = $res->fetch_row();
if ($row->name == $nextRow->name) {
echo "";
// reset the internal pointer
$res->data_seek($rowCount);
} else {
echo $row->name;
}
} else {
echo $row->name;
}
// update the row count
$rowCount += 1;
}