Question

我有一组包含五个字段的行。我的要求是，如果“Internal_Deadline”字段大于任何行中的“Client_Deadline”，则必须显示“内部截止日期不应大于客户截止日期”的警告。现在只检查第一行。我需要检查所有行。感谢

<?php

for( $i = 1; $i <= 100; $i++ )
{
    $task = $_POST['task'.$i];
    $Description = $_POST['Description'.$i];
    $Internal_Deadline = $_POST['Internal_Deadline'.$i];
    $Client_Deadline = $_POST['Client_Deadline'.$i];
    $Actual_Deadline = $_POST['Actual_Deadline'.$i];

    if(strtotime($Internal_Deadline) > strtotime($Client_Deadline)){

        ?>
        <script>alert('Internal Deadline should not be greater than Client Deadline');</script>
        <?php
    }
    else{    

        $result_task=mysql_query("select * from project_plan where p_id='$p_id' and task_no='$i'", $dbconnect1);   
        $row_task=mysql_fetch_array($result_task);
        $id=$row_task['id'];

        if(mysql_num_rows($result_task)!=0){
            $update_result=mysql_query("update project_plan set Task='$task',Description='$Description',Internal_Deadline='$Internal_Deadline',Client_Deadline='$Client_Deadline',Actual_Deadline='$Actual_Deadline' where id='$id'", $dbconnect1);
        }
        else{  
            if($task!=""){
                $que = mysql_query("insert INTO project_plan(task_no,Task,Description,Internal_Deadline,Client_Deadline,Actual_Deadline,Created_Date,p_id) VALUES ('".$i."','".$task."','".$Description."','".$Internal_Deadline."','".$Client_Deadline."','".$Actual_Deadline."','".$current_date."','".$p_id."')", $dbconnect1);
            }
        }
    }
}

Answer 1

首先，for循环的长度不正确。

您需要将此循环完全相同地运行到后期数据计数。

其次，我在本地尝试了您的给定数据（在您的评论中）。似乎不符合条件：

  if(strtotime($Internal_Deadline) > strtotime($Client_Deadline)){

尝试这样：
它将跳过不必要的循环。如果您在发布数据中设置了task1，task2，task3，那么它将运行3次，而不是100次。

$i=1;
while(isset($_POST['task'.$i]))
{
    $task = $_POST['task'.$i];
    $Description = $_POST['Description'.$i];
    $Internal_Deadline = $_POST['Internal_Deadline'.$i];
    $Client_Deadline = $_POST['Client_Deadline'.$i];
    $Actual_Deadline = $_POST['Actual_Deadline'.$i];

    if(strtotime($Internal_Deadline) > strtotime($Client_Deadline)){

        ?>
        <script>alert('Internal Deadline should not be greater than Client Deadline');</script>
    <?php
    }
    else{

        $result_task=mysql_query("select * from project_plan where p_id='$p_id' and task_no='$i'", $dbconnect1);
        $row_task=mysql_fetch_array($result_task);
        $id=$row_task['id'];

        if(mysql_num_rows($result_task)!=0){
            $update_result=mysql_query("update project_plan set Task='$task',Description='$Description',Internal_Deadline='$Internal_Deadline',Client_Deadline='$Client_Deadline',Actual_Deadline='$Actual_Deadline' where id='$id'", $dbconnect1);
        }
        else{
            if($task!=""){
                $que = mysql_query("insert INTO project_plan(task_no,Task,Description,Internal_Deadline,Client_Deadline,Actual_Deadline,Created_Date,p_id) VALUES ('".$i."','".$task."','".$Description."','".$Internal_Deadline."','".$Client_Deadline."','".$Actual_Deadline."','".$current_date."','".$p_id."')", $dbconnect1);
            }
        }
    }
    $i =$i +1;
}

php中“for循环”内的日期比较

1 个答案: