Foreach Loop only uses last value [duplicate] - php

Question

This question already has answers here:
How to store values from foreach loop into an array?
(9 answers)
Closed 1 year ago.
Hi I am using the Calendar Code u can find down in the code. Now I am using Sql to get some days I want to mark in the calendar. In the foreach loop u can see me using the array $tage.
When I print_r($tage) it gives me following Information: Array ( [0] => 9 [1] => 8 [2] => 8 [3] => 8 [4] => 8 [5] => 11 )
Maybe there is a Problem with the returning values, but using only the unique values was not possible either.
Fyi the only highlight I always get is the last value 11.
I think the whole issue comes down to the combination of while foreach and elseif. I can't find any Solution to this. Maybe someone figures it out.
Thanks :)
<?php
error_reporting();
ini_set('display_errors', 1);
setlocale(LC_TIME, "de_DE");
class Calendar{
private $month;
private $year;
private $daysofweek;
private $numdays;
private $date_info;
private $day_of_week;
private $tnr;
public function __construct($month,$year,$days_of_week =array('So','Mo','Di','Mi','Do','Fr','Sa')){
$this->month =$month;
$this->year =$year;
$this->days_of_week =$days_of_week;
$this->num_days =cal_days_in_month(CAL_GREGORIAN, $this->month, $this->year);
$this->date_info =getdate(strtotime('first day of', mktime(0,0,0,$this->month,1,$this->year)));
$this->day_of_week =$this->date_info['wday'];
$this->monat = date("n", mktime(0, 0, 0, $this->month, 1, $this->year));
}
public function show($tnr) {
$monate = array(1=>"Januar",
2=>"Februar",
3=>"März",
4=>"April",
5=>"Mai",
6=>"Juni",
7=>"Juli",
8=>"August",
9=>"September",
10=>"Oktober",
11=>"November",
12=>"Dezember");
include '../include/myt.php';
// WERT 0 entfernen
// GRÖße des ARRAY
$size =sizeof($tnr);
$now_mon= $this->monat;
foreach($tnr as $tnrs){
$sql= "SELECT * FROM termin WHERE nr = '$tnrs' AND monat ='$now_mon' ";
$query = mysqli_query($conn, $sql);
$row = mysqli_fetch_array($query);
$tagdata = $row['tag'];
if($tagdata == ""){
"";
} else {
$tage[] = $tagdata;
}
}
$output= '<table id="table'. $this->monat . '" class="table table-striped">';
$output .= '<thead id="head'. $this->monat . '" style="text-align:center">'. $monate[$this->monat] . ' ' . $this->year . '</thead>';
$output .= '<tr>';
foreach( $this->days_of_week as $day)
{
$output .= '<th class="header center">' . $day . '</th>';
}
$output .= '</tr><tr>';
if($this->day_of_week > 0){
$output .= '<td colspan="' . $this->day_of_week . '"></td>';
}
$current_day =1;
while ( $current_day <= $this->num_days){
if($this->day_of_week ==7){
$this ->day_of_week =0;
$output .= '</tr></tr>';
}
///PROBLEM
print_r($tage);
foreach($tage as $tag){
if($current_day == $tag){
$current='style ="background: black;"';
} else {
$current= '';
}
}
///PROBLEM
$output .='<td class="day"'.$current.'>' . $current_day . '</td>';
$current_day++;
$this->day_of_week++;
}
if($this->day_of_week != 7){
$remaining_days = 7 - $this->day_of_week;
$output .= '<td colspan="' . $remaining_days . '"></td>';
}
$output .= '</tr>';
$output .= '</table>';
echo $output;
}
}
?>

Answer 1

Change your foreach loop as below:
foreach($tnr as $tnrs) {
$sql= "SELECT * FROM termin WHERE nr = '$tnrs' AND monat ='$now_mon' ";
$query = mysqli_query($conn, $sql);
$row = mysqli_fetch_array($query);
$tagdata = $row['tag'];
if(!empty($tagdata)) {
$tage[] = $tagdata;
}
}
Can you please check at line $output .='<td class="day"'.$current.'>' . $current_day . '</td>';
It should be $output .='<td class="day"'.$current.'">' . $current_day . '</td>';, You are forgot to add ".
May be it is help you.