I have the following array:
$array = [
['2017-02-26', '2017-02-27'],
['2017-03-01'],
['2017-01-01', '2017-01-02', '2017-01-03', '2017-01-04'],
['2017-01-05', '2017-01-06', '2017-01-07']
];
I'm looking to loop into this array to have something like this:
// When several dates
From 2017-02-26 to 2017-02-27.
// When only one date
On the 2017-03-01.
What I tried:
foreach ($array as $key => $value) {
$count = count($array[$key]);
if($count==1) {
echo "On the $key[$value]";
}
else {
$first = reset($array);
$last = end($array);
echo "From ".$first." to ".$last.;
}
}
But it doesn't work when there is only one date in the row.
You are looping by foreach() so it will display last echo string .Store result to one variable Eg($display) will be more easy to display that
$display = "";
foreach ($array as $key => $value) {
$count = count($array[$key]);
if($count==1) {
$display .= "On the $value[0] <br>";
}
else {
$first = $value[0];
$last = $value[$count-1];
$display .= "From ".$first." to ".$last."<br>";
}
}
echo $display;
Try this:-
foreach ($array as $key => $value) {
$count = count($value);
if($count==1) {
echo "On the ".$value[0];
}
else {
$first = reset($value);
$last = end($value);
echo "From ".$first." to ".$last;
}
}
Or just copy paste this code, it will work. Your main inside array to play with is $value.
Related
I want to limit every array to strings with 15 characters or less. I have tried this code, but it does not work:
$a = [
"name1" => ['Dewa','Aditya','Pratama'],
"name2" => ['Brian','Dzikri','Ramadhan'],
];
$result_shortdes = "";
foreach ($a as $values) {
foreach ($values as $value) {
if(strlen($result_shortdes) + strlen($value) <= 15)
{
$result_shortdes .= "$value,";
}
}
}
echo '<pre>';
print_r($result_shortdes);
echo '<pre>';
My expected output is like this:
1. Dewa,Aditya,
2. Brian,
Every time you go to the next name, you need to reset result_shortdes to count the name length again, place the variable inside the first loop like this:
foreach ($a as $values) {
$result_shortdes = "";
foreach ($values as $value) {
if(strlen($result_shortdes) + strlen($value) <= 15)
{
$result_shortdes .= "$value,";
}
}
echo '<pre>';
print_r($result_shortdes);
echo '<pre>';
}
you can use $result_shortdes for length and $result to store result like below
$a = [
"name1" => ['Dewa','Aditya','Pratama'],
"name2" => ['Brian','Dzikri','Ramadhan'],
];
$result_shortdes = "";
$result = [];
foreach ($a as $values) {
$result_shortdes = "";
foreach ($values as $value) {
if(strlen($result_shortdes) + strlen($value) <= 15)
{
$result_shortdes .= "$value,";
}else{
$result[] = $result_shortdes;
break;
}
}
}
echo '<pre>';
print_r($result);
echo '<pre>';
$array = ['coke.','fanta.','chocolate.'];
foreach ($array as $key => $value) {
if (strlen($value)<6) {
$new[] = $value." ".$array[$key+1];
} else {
$new[] = $value;
}
}
This code doesn't have the desired effect, in fact it doesn't work at all. What I want to do is if an array element has string length less than 5, join it with the next element. So in this case the array should turn into this:
$array = ['coke. fanta.','chocolate.'];
$array = ['coke.','fanta.','chocolate.', 'candy'];
$new = [];
reset($array); // ensure internal pointer is at start
do{
$val = current($array); // capture current value
if(strlen($val)>=6):
$new[] = $val; // long string; add to $new
// short string. Concatenate with next value
// (note this moves array pointer forward)
else:
$nextVal = next($array) ? : '';
$new[] = trim($val . ' ' . $nextVal);
endif;
}while(next($array));
print_r($new); // what you want
Live demo
With array_reduce:
$array = ['coke.', 'fanta.', 'chocolate.', 'a.', 'b.', 'c.', 'd.'];
$result = array_reduce($array, function($c, $i) {
if ( strlen(end($c)) < 6 )
$c[key($c)] .= empty(current($c)) ? $i : " $i";
else
$c[] = $i;
return $c;
}, ['']);
print_r($result);
demo
<pre>
$array = ['coke.','fanta.','chocolate.'];
print_r($array);
echo "<pre>";
$next_merge = "";
foreach ($array as $key => $value) {
if($next_merge == $value){
continue;
}
if (strlen($value)<6) {
$new[] = $value." ".$array[$key+1];
$next_merge = $array[$key+1];
} else {
$new[] = $value;
}
}
print_r($new);
</pre>
Updated Code after adding pop after chocolate.
<pre>
$array = ['coke.','fanta.','chocolate.','pop'];
print_r($array);
echo "<br>";
$next_merge = "";
foreach ($array as $key => $value) {
if($next_merge == $value){
continue;
}
if (strlen($value)<6 && !empty($array[$key+1])) {
$new[] = $value." ".$array[$key+1];
$next_merge = $array[$key+1];
} else {
$new[] = $value;
}
}
print_r($new);
<pre>
You need to skip the iteration for the values that you have already added.
$array = ['coke.', 'fanta.', 'chocolate.'];
$cont = false;
foreach ($array as $key => $value) {
if ($cont) {
$cont = false;
continue;
}
if (strlen($value) < 6 && isset($array[$key+1])) {
$new[] = $value.' '.$array[$key+1];
$cont = true;
}
else {
$new[] = $value;
}
}
print_r($new);
This is my code:
session_start();
/* loops through each row in the global $_SESSION variable which
contains the array and uses the $value to GET the data in the text
boxes and output them */
// studevent_result =
foreach ($_SESSION['arrayNameResult'] as $value) {
$studResult = $_GET[$value];
echo $studResult;
echo "<br>";
}
// result_postion =
foreach ($_SESSION['arrayNamePosition'] as $value) {
$studPosition = $_GET[$value];
echo $studPosition;
echo "<br>";
}
echo "<br>";
// stud_id =
foreach ($_SESSION['arrayId'] as $value) {
echo $value;
echo "<br>";
}
// UPDATE query, this will update the studevent_result and result_position
// column in the database for the specific stud_id.
$updateQuery = "
UPDATE result
SET studevent_result = '00:20:33',
result_position = '6'
WHERE result.stud_id = '12'
";
$updateRow = mysqli_query($conn, $updateQuery);
I use $_SESSION variables which all store an array. I extract the results of these arrays using foreach loops.
In $updateQuery, I want to make studevent_result = to the results of my first foreach loop above, result_position = to the results of the second foreach loop above and the result.stud_id = to the results of the third foreach loop above.
After me editing the code my code now looks like this:
foreach ($_SESSION['arrayNameResult'] as $value) {
$studResult = $_GET[$value];
foreach ($_SESSION['arrayNamePosition'] as $data) {
$studPosition = $_GET[$data];
foreach ($_SESSION['arrayId'] as $idValue) {
echo $idValue;
$updateQuery = "
UPDATE result
SET studevent_result = '$studResult',
result_position = '$studPosition'
WHERE result.stud_id = '$idValue'
";
$updateRow = mysqli_query($conn, $updateQuery);
}
}
}
I nested the foreach loops. But the problem now is that for the last foreach loop in the nested loops, $idValue in the query only uses the last element in the array $_SESSION['arrayId']. How can I fix this to loop throught the whole array, so that the query uses all the values in the array?
Thanks in advance.
If I understood your issue this should help you
session_start();
$i = 0;
$studResult = array();
foreach ($_SESSION['arrayNameResult'] as $value) {
$studResult[$i] = $_GET[$value];
$i++;
}
$studPosition= array();
$i=0;
foreach ($_SESSION['arrayNamePosition'] as $value) {
$studPosition[$i] = $_GET[$value];
$i++;
}
$stud_id = array(); $i=0;
foreach ($_SESSION['arrayId'] as $value) {
$stud_id[$i] = $value; $i++;
}
for($j =0; $j<$i; $j++){
$updateQuery = "
UPDATE result
SET studevent_result = '$studResult[$j]',
result_position = '$studPosition[$j]'
WHERE result.stud_id = '$stud_id[$j]'
";
$updateRow = mysqli_query($conn, $updateQuery);
}
Hope it will be helpful. Happy coding :)
I want to store result of a query as associative array. Below is my code that generates the query result below.
<?php
$include('config.php') //mysql connection file
$result = mysql_query("SELECT daystime.*, Sprinkler_ID FROM daystime, scheduler WHERE daystime.id = scheduler.DaysTime_ID ORDER BY daystime.id, Sprinkler_ID") or trigger_error(mysql_error());
$data_array = array();
while($rs = mysql_fetch_assoc($result))
{
$key=$rs['id'];
$value=$rs['Sprinkler_ID'];
$data_array[$key] = [$value];
}
foreach ($data_array as $key => $value)
{
echo $key.'=>'.$value.'<br />';
}
?>
This gives me output as
19=>Array
20=>Array
21=>Array
27=>Array
29=>Array
But I should get
19 -> [4,5],
20 -> [5],
21=>[4,6],
// and so on
$value is an array, you can't use echo on arrays
Don't loop just do a var_dump()
$data_array = array();
while($rs = mysql_fetch_assoc($result)){
$data_array[$rs['id']][]=$rs['Sprinkler_ID'];
}
var_dump($data_array);//or print_r($data_array);
<?php
$include('config.php') //mysql connection file
$result = mysql_query("SELECT daystime.*, Sprinkler_ID FROM daystime, scheduler WHERE daystime.id = scheduler.DaysTime_ID ORDER BY daystime.id, Sprinkler_ID") or trigger_error(mysql_error());
$data_array = array();
while($rs = mysql_fetch_assoc($result))
{
$key=$rs['id'];
$value=$rs['Sprinkler_ID'];
$data_array[$key] = [$value];
}
$out = '';
$count = count($data_array);
$iter = 0;
foreach ($data_array as $key => $value)
{
$out.= $key.'=>[';
foreach ($value as $val) {
$out.=$val.',';
}
$out = rtrim($out, ",");
$out.= ']';
if ($iter < ($count-1)) {
$out.=',<br />';
}
$iter++;
}
echo $out;
You need an inner foreach loop to handle printing the array in $value as this is a multi dimensional array. The preceding is an example of how it could look to produce the exact output you requested. If you are looking for a dump of the values, then please use the var_dump solution provided by #meda.
There are two issues in your code. The first is that $value is an array, the second is that this array only contains one item.
Try this:
$data_array = array();
while($rs = mysql_fetch_assoc($result))
{
$key=$rs['id'];
$value=$rs['Sprinkler_ID'];
$data_array[$key][] = $value;
}
foreach ($data_array as $key => $values)
{
echo $key.'=> [';
foreach($values as $value)
echo $value . ',';
echo ']<br />';
}
I am trying to display a number that has the english comma separation.
This code gets the number of likes from multiple pages and displays them in a list ordered by number of facebook likes.
function array_sort($array, $on, $order=SORT_ASC)
{
$new_array = array();
$sortable_array = array();
if (count($array) > 0) {
foreach ($array as $k => $v) {
if (is_array($v)) {
foreach ($v as $k2 => $v2) {
if ($k2 == $on) {
$sortable_array[$k] = $v2;
}
}
} else {
$sortable_array[$k] = $v;
}
}
switch ($order) {
case SORT_ASC:
asort($sortable_array);
break;
case SORT_DESC:
arsort($sortable_array);
break;
}
foreach ($sortable_array as $k => $v) {
$new_array[$k] = $array[$k];
}
}
return $new_array;
}
function getLikes($arr){
$urls = "";
// Add urls to check for likes
for($i = 0;$i < count($arr);$i++) {
if($urls != "") $urls .= ",";
$urls .= $arr[$i];
}
// Retreive info from Facebook
$xml = simplexml_load_file("http://api.facebook.com/restserver.php?method=links.getStats&urls=" . $urls);
$likes = array();
// Loop through the result and populate an array with the likes
for ($i = 0;$i < count($arr);$i++) {
$url = $xml->link_stat[$i]->url;
$counts = (int)$xml->link_stat[$i]->like_count;
$likes[] = array('likes' => $counts,'url' => $url);
}
return $likes;
}
$array = array("URL HERE","URL HERE");
$likes = getLikes($array);
$likes = array_sort($likes, 'likes', SORT_DESC);
$english_format_number = number_format($likes, 'likes');
foreach ($likes as $key => $val) {
echo "<li class='facebook'><div class='fb-page'><div class='rank'>" . $key . "</div>" . "<div class='thumb " . $val['url'] . "'><div class='link'>" . $val['url'] . "</div></div>" . "<div class='likes'>" . $val['likes'] . "</div></div></li><br />";
}
The code works fine, by the way I am not a coder, and am only just getting into it.
I was trying to add in something like
$english_format_number = number_format($likes, 'likes');
But of course I have no idea if I can do that or where to put it.
Can anyone help?
you use wrong parameter in number_format function. the correct format is number_format(number,decimals,decimalpoint,separator). so change you code to
$english_format_number = number_format($likes, 0, ',', '.') . 'likes';