问题似乎在于您在为每一行调用“ head”。因此，您应该首先检查它是否已经被调用。希望以下内容对您有所帮助：
$stmt->bind_param("s", $name1);
$stmt->execute();
$stmt->store_result();
$stmt->bind_result($work,$amount,$count,$total_group,$date);
$last_work = "";
while ($stmt->fetch()) {
if($work != $last_work || $amount != $last_amount){
if ($count>1) {
echo "<br>".$count." ".$work."s @ £".$amount." each<br><br>";
}
else {
echo "<br>".$count." ".$work." @ £".$amount."<br><br>";
}
$last_work = $work;
$last_amount = $amount;
}
echo date("jS F Y",strtotime($date))."<br>";
$total_work=$total_work+$total_group;
}
在这两种情况下（和），我将echo date和移到$total_work相同的位置$count >1``else
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