单击提交按钮php mysql后重定向到下一页

Question

I would like to redirect to the next page after clicking on the submit page, but I get the following error:

Warning: Cannot modify header information - headers already sent by (output started at C:\\xampp\\htdocs\\forms\\P_details.php:80) in C:\\xampp\\htdocs\\P_details.php on line 70

the following is the php code on P_details.php

//connect to connect to the database and initialize all functions
include 'scripts/functions/init.php';
include 'html/head.php';
include 'html/page_title.php';
include 'html/top_menu.php';
include 'titles/P_details.php';

//Generate a random Personid
$Personid = rand(1,9999999);
$_SESSION['Personid'] = $Personid;
//Carry over the Jobid to this page
$Jobid = $_SESSION['SESS_MEMBER_JOB'];

if(empty($_POST)=== false)
    {
        $R_fields = array('Title','Surname','Forename','IdentityNumber','Gender','Race','Nationality');
        foreach($_POST as $key=>$value)
        {
            if (empty($value) && in_array($key,$R_fields)=== true)
                {
                    $errors[] = 'fields marked with (*) are required';
                    break 1;
                }
        }

        if(empty($errors)=== true)
            {

                if($_POST['title'] == '-Select-')
                    {
                        $errors[] ='Please select Title';
                    }
                if($_POST['Gender'] == '-Select-')
                    {
                        $errors[] ='Please select Gender';
                    }
                if($_POST['Race'] == '-Select-')
                    {
                        $errors[] ='Please select Race';
                    }
                if($_POST['Nationality'] == '-Select-')
                    {
                        $errors[] ='Please select Nationality';
                    }

            }

    }

    include 'forms/P_details.php';

    if(empty($_POST) === false && empty($errors)=== true)
        {
            //submit personal details
            $personal_details = array(
            'Personid'=>$Personid,
            'Title' => $_POST['title'],
            'Surname'=>$_POST['Surname'],
            'Forename' => $_POST['Forename'],
            'IdentityNumber'=>$_POST['IdentityNumber'],                                             
            'Gender'=>$_POST['Gender'],
            'Race'=>$_POST['Race'],
            'Nationality'=>$_POST['Nationality'],
            'WorkPermitNumber'=>$_POST['WorkPermitNumber'],
            'JobID'=>$Jobid);                       
            personal_details($personal_details);                        
            //redirect
            header('Location:Address_insert.php');
            exit();                                                                                                                             
        }
    else if(empty($errors) === false)
        {
            //output errors if the errors array is not empty
            echo output($errors);
        }

?>

Please assist

Answer 1

请在页面顶部调用ob_start() ，在底部ob_end_flush() ，或者在header()之前不回显页面上的任何内容

Answer 2

That error appears when you've echoed any output to the browser before heading to another page.

Check your includes and be sure that you are not doing an echo anywhere.

Answer 3

I moved the line include 'forms/P_details.php' below the header statement

<?php

//connect to connect to the database and initialize all functions
include 'scripts/functions/init.php';
include 'html/head.php';
include 'html/page_title.php';
include 'html/top_menu.php';
include 'titles/P_details.php';

//Generate a random Personid
$Personid = rand(1,9999999);
$_SESSION['Personid'] = $Personid;
//Carry over the Jobid to this page
$Jobid = $_SESSION['SESS_MEMBER_JOB'];

if(empty($_POST)=== false)
    {
        $R_fields = array('Title','Surname','Forename','IdentityNumber','Gender','Race','Nationality');
        foreach($_POST as $key=>$value)
        {
            if (empty($value) && in_array($key,$R_fields)=== true)
                {
                    $errors[] = 'fields marked with (*) are required';
                    break 1;
                }
        }

        if(empty($errors)=== true)
            {

                if($_POST['title'] == '-Select-')
                    {
                        $errors[] ='Please select Title';
                    }
                if($_POST['Gender'] == '-Select-')
                    {
                        $errors[] ='Please select Gender';
                    }
                if($_POST['Race'] == '-Select-')
                    {
                        $errors[] ='Please select Race';
                    }
                if($_POST['Nationality'] == '-Select-')
                    {
                        $errors[] ='Please select Nationality';
                    }

            }

    }



    if(empty($_POST) === false && empty($errors)=== true)
        {
            //submit personal details
            $personal_details = array(
            'Personid'=>$Personid,
            'Title' => $_POST['title'],
            'Surname'=>$_POST['Surname'],
            'Forename' => $_POST['Forename'],
            'IdentityNumber'=>$_POST['IdentityNumber'],                                             
            'Gender'=>$_POST['Gender'],
            'Race'=>$_POST['Race'],
            'Nationality'=>$_POST['Nationality'],
            'WorkPermitNumber'=>$_POST['WorkPermitNumber'],
            'JobID'=>$Jobid);                       
            personal_details($personal_details);                        
            //redirect
            header('Location: Address_insert.php');
            exit();                                                                                                                             
        }
    else if(empty($errors) === false)
        {
            //output errors if the errors array is not empty
            echo output($errors);
        }

        include 'forms/P_details.php';

?>

Answer 4

header('Location:Address_insert.php'); before any output.

Possible your included files contains any output?

include 'html/head.php';
include 'html/page_title.php';
include 'html/top_menu.php';
include 'titles/P_details.php';

Or

include 'forms/P_details.php';

Any output possible to insert only after header('Location:Address_insert.php');