php mysql foreach循環重複結果

這是一個複雜的foreach，在一個if內部的while循環中，由於某種原因，它重複了結果並在每次運行循環時追加結果。碼和輸出如下：php mysql foreach循環重複結果

$timezonedate = date('Y-m-d'); 
$yesterday = date('Y-m-d', strtotime('-1 days')); 
$tomorrow = date('Y-m-d', strtotime('+1 days')); 

$timezonesql = "SELECT contacts.id AS contact_id, contacts.cbdate AS cbdate, contacts.cbtime AS cbtime, contacts.firstName AS contact_firstName, contacts.lastName AS contact_lastName, contacts.email AS contact_email, contacts.tel1 AS tel, contacts.rep AS contact_rep, members.id AS member_id, members.firstName AS member_firstName, members.lastName AS member_lastName, members.email AS member_email, members.timezone AS timezone FROM contacts INNER JOIN members ON contacts.rep = members.id WHERE contacts.cbdate = '$timezonedate' || contacts.cbdate = '$yesterday' || contacts.cbdate = '$tomorrow' ORDER BY contacts.id ASC"; 

$timezoneresult = mysql_query($timezonesql, $link); 

if(mysql_num_rows($timezoneresult) == 0) { 

} 

else 

{ 

while($timezoneRow = mysql_fetch_array($timezoneresult)) { 

     date_default_timezone_set($timezoneRow['timezone']); 

     $nowdate = date('Y-m-d'); 
     $beforetime = date('H:i:59', time() - 1*60); 
     $aftertime = date('H:i:00', time() + 1*60); 

     if($timezoneRow['cbdate'] = $nowdate && $timezoneRow['cbtime'] > $beforetime && $timezoneRow['cbtime'] < $aftertime) { 

         $contactid[] = $timezoneRow['contact_id']; 
         $contactemail[] = $timezoneRow['contact_email']; 
         $contactfirstName[] = $timezoneRow['contact_firstName']; 
         $contactlastName[] = $timezoneRow['contact_lastName']; 
         $memberemail[] = $timezoneRow['member_email']; 

       foreach($contactid as $key=>$val) { 
        echo "".$contactfirstName[$key]." ".$contactlastName[$key]." ".$memberemail[$key]."<br>"; 
    }  
} 
else {} 
} 
} 
exit;

輸出：

米老鼠[email protected]

米老鼠[email protected]
米妮妮@電子郵件。 com

mickey mouse [email protected]
minnie mouse minnie @ email.com
唐老鴨[email protected]

米老鼠[email protected]
米妮[email protected]
唐老鴨[email protected]
高飛狗[email protected]

我已經搜遍了這裏的類似問題，找不到一個能夠解決我的問題的方法。有任何想法嗎？？

聲明：我知道我應該使用準備好的聲明，我會在這個項目結束後立即開始。

來源

2014-09-24 Paige Rose Figueira

@DonCallisto contact_id和member_id是唯一的。 – 2014-09-24 16:10:40

請[不要在新代碼中使用'mysql_ *'函數]（http://stackoverflow.com/questions/12859942/why-shouldnt-i-use-mysql-functions-in-php）。 *他們不再維護，並[已正式棄用]（https://wiki.php.net/rfc/mysql_deprecation）*。看到[紅色框]（http://uk.php.net/manual/en/function.mysql-connect.php）？學習[準備的語句]（http://en.wikipedia.org/wiki/Prepared_statement），並使用[PDO]（http://us1.php.net/pdo）或[MySQLi]（http：// us1.php.net/mysqli）。 [這篇文章]（http://php.net/manual/en/mysqlinfo.api.choosing.php）將幫助你決定哪些。 – 2014-09-24 16:13:04

即使你在你的問題中增加了免責聲明，你也無法阻止mysql hater。永遠。 – 2014-09-24 17:47:00

你的foreach循環應該是外面的while循環：

while($timezoneRow = mysql_fetch_array($timezoneresult)) { 

     date_default_timezone_set($timezoneRow['timezone']); 

     $nowdate = date('Y-m-d'); 
     $beforetime = date('H:i:59', time() - 1*60); 
     $aftertime = date('H:i:00', time() + 1*60); 

     if($timezoneRow['cbdate'] = $nowdate && $timezoneRow['cbtime'] > $beforetime && $timezoneRow['cbtime'] < $aftertime) { 

         $contactid[] = $timezoneRow['contact_id']; 
         $contactemail[] = $timezoneRow['contact_email']; 
         $contactfirstName[] = $timezoneRow['contact_firstName']; 
         $contactlastName[] = $timezoneRow['contact_lastName']; 
         $memberemail[] = $timezoneRow['member_email']; 

} 
else {} 
} 

foreach($contactid as $key=>$val) { 
     echo "".$contactfirstName[$key]." ".$contactlastName[$key]." ".$memberemail[$key]."<br>"; 
}

來源

2014-09-24 16:10:50

您正在運行在錯誤的地方你的foreach循環 - 你應該把它放在while循環外。另外 - 爲什麼你複製很多變量？它可以像這樣簡單地完成（在一個數組中存儲適當的行，而不是5個數組:)，如下所示：

$contacts = array(); 
while($timezoneRow = mysql_fetch_array($timezoneresult)) { 

    date_default_timezone_set($timezoneRow['timezone']); 
    $nowdate = date('Y-m-d'); 
    $beforetime = date('H:i:59', time() - 1*60); 
    $aftertime = date('H:i:00', time() + 1*60); 

    if($timezoneRow['cbdate'] = $nowdate && $timezoneRow['cbtime'] > $beforetime && $timezoneRow['cbtime'] < $aftertime) { 
    $contacts[] = $timezoneRow; // this is enough! 
    } 
    else {} 
} // end while loop 

//print desired data 
foreach($contacts as $key=>$contactData) { 
    echo "".$contactData['contact_firstName']." ".$contactData['contact_lastName']." ".$memberemail['member_email']."<br>"; 
}

來源

2014-09-24 16:11:52 Kleskowy

php mysql foreach循環重複結果

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