使用foreach循环的PHP if语句

我在php中使用这个foreach循环来选择每个$\u会话变量

但这只是检查一个$RELESERID的if语句-我需要检查所有这些语句

这可能吗？

在foreach循环中使用if子句

---

首先，您应该立即停止使用任何mysql_*函数。请看这里：

该接口现在已被弃用，您应该使用PDO_MySQL或MySQLi

由于未清理SQL查询的输入，代码中还存在SQL注入漏洞

要回答您的问题，您可以这样回答：

<?php
//reseller info
foreach ($_SESSION["integradigital.co.uk"]["resellers"] as $reseller){
    $stmt = $db->prepare('SELECT * FROM reseller WHERE sequence = (?)');
    $stmt->execute(array($reseller));
    $result = $stmt->fetchAll();
    $resellerID = $result["sequence"];

    if($this_var == $resellerID){
        //Your code here
    }
}
?>

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在foreach中，添加一个变量$i，如果条件满足，该变量将递增：

$i=0

---

是的，这是可能的，但还远不清楚您正在检查什么，或者在检查后将如何进行。如果语句是==而不是=。嗨，Charlie，值得您阅读我的答案，并接受我关于SQL注入和mysql\u查询使用的评论。此调用将在将来从PHP中删除，因此您应该停止使用它：-

if($this_var = $ResellerID)
{
...

<?php
//reseller info
foreach ($_SESSION["integradigital.co.uk"]["resellers"] as $reseller)
{
    $sql2="SELECT * from reseller where sequence = '".$reseller."' ";
    $rs2=mysql_query($sql2,$conn) or die(mysql_error());
    $result2=mysql_fetch_array($rs2);
    $ResellerID = $result2["sequence"];

   if($this_var == $ResellerID)
   {
      // Something to do
   }
}
?>

<?php
   $rid = array();

   foreach ($_SESSION["integradigital.co.uk"]["resellers"] as $reseller)
   {
      $sql2="SELECT * from reseller where sequence = '".$reseller."' ";
      $rs2=mysql_query($sql2,$conn) or die(mysql_error());
      $result2=mysql_fetch_array($rs2);
      $rid[] = $result2["sequence"];
   }

   if(in_array($this_var, $rid))
   {
      // Something to do
   }
?>

<?php
//reseller info
foreach ($_SESSION["integradigital.co.uk"]["resellers"] as $reseller){
    $stmt = $db->prepare('SELECT * FROM reseller WHERE sequence = (?)');
    $stmt->execute(array($reseller));
    $result = $stmt->fetchAll();
    $resellerID = $result["sequence"];

    if($this_var == $resellerID){
        //Your code here
    }
}
?>

$stmt = $db->prepare('SELECT name, address FROM reseller WHERE sequence = (?)');

<?php
//reseller info
foreach ($_SESSION["integradigital.co.uk"]["resellers"] as $reseller)
{
    $sql2="SELECT * from reseller where sequence = '".$reseller."' ";
    $rs2=mysql_query($sql2,$conn) or die(mysql_error());
    $result2=mysql_fetch_array($rs2);
    $ResellerID = $result2["sequence"];

   if($this_var == $ResellerID)
   {
      $i++;// or change $i to boolean
   }
}

 if($i>0){ 
    //your code here 
 }

?>