在PHP

Question

我有一个foreach循环，输出一堆数字，然后我想取所有这些数字并将它们加在一起。但是，当我这样做时，它只会在小数点之前加起来。我觉得也许我错过了number_format的东西？

以下是代码：

$totalHours = '0';
  foreach ($timeEntries as $entry) {
    $entryID = $entry->id;
    $entryHours = $entry->hours;
    $entryDate = $entry->spent_at;
    $totalHours += $entryHours;
    echo $entryHours."<br />";
  }
  echo "All added up: $totalHours <br />";

这显示以下内容：

0.7
0.5
0.53
2.6
0.8
0.2
0.5
2.22
1.28
0.57
0.55
0.35
0.5
0.5
1.2
1.4
1.2
0.5
0.82
1.0
0.17
0.33
2.0
1.0
0.5
1.0
0.17
1.97
All added up: 14 

有什么想法吗？

Answer 1

@craig得到了这个！

解决方案是将其更改为以下内容：

  $totalHours = '0';
  foreach ($timeEntries as $entry) {
    $entryID = $entry->id;
    $entryHours = $entry->hours;
    $entryDate = $entry->spent_at;
    $floatHours = (float) $entryHours;
    $totalHours += $floatHours;
  }
  echo "All added up: $totalHours <br />";