How do i set a default default image (no_pic.gif) php?

问题

i have a default image in my pictures within the project but cant seem to be able to get it to reflect when user hasn't uploaded an image. Help please. below is the profile view and also the upload script

Profile.php:

<head>
        <title>Profile</title>
    </head>
    <body>
        <table>
            <tr>
                <td colspan="2">View Your Current Profile</td>
            </tr>
             <tr>
                <td>Title:</td>
                <td><?php echo $jobseekertitle; ?></td>
            </tr>
             <tr>
                <td>First Name:</td>
                <td><?php echo $jobseekerfirstname; ?></td>

            </tr>
             <tr>
                <td>Last Name:</td>
                <td><?php echo $jobseekerlastname; ?></td>
            </tr>
             <tr>
                <td>Address:</td>
                <td><?php echo $jobseekeraddress; ?></td>
            </tr>
             <tr>
                <td>Phone:</td>
                <td><?php echo $jobseekerphoneno; ?></td>
            </tr>
             <tr>
                <td>D.O.B (mm/dd/yyyy):</td>
                <td><?php echo $jobseekerdob; ?></td>
            </tr>
             <tr>
                <td>Gender:</td>
                <td><?php echo $jobseekergender; ?></td>
            </tr>
             <tr>
                <td>Picture:</td>

                <td><?php echo "<img src='$location' width='100' height='100'>";?></td>
            </tr>
        </table>

        <br><a href='upload.php'> Image upload</a>

        <br><a href='resumecreator.php'> Resume information</a>

         <br><a href='jobpreference.php'> Job Preference</a>

</body>
</html>

upload.php

<?php
// form in which we can upload the image
session_start();

include("connect.php");

// session as on website.

$jobseekerid = $_SESSION['jobseekerid'];

if($_POST['submit'])
{
    //get file attributes
    $name = $_FILES['myfile']['name'];
    $tmp_name = $_FILES['myfile']['tmp_name'];


    if ($name)
    {
       // start upload process
       $location ="pictures/$name";
       move_uploaded_file($tmp_name,$location);
// updating table users (setting image locaion
       $query = mysql_query("UPDATE jobseekers SET imagelocation='$location' WHERE jobseekerid='$jobseekerid'");

       die("Your avatar has been uploaded! <a href='profile.php'>Go back to view</a>");


    }
    else

        die("Please Select a file!");

}

echo "Welcome, ".$_SESSION['username']."!<br><a href='logout.php'>Logout</a>";

echo "Upload Your image:

<form action='upload.php' method='POST' enctype='multipart/form-data'>
File: <input type='file' name='myfile'> <input type='submit' name='submit' value='upload!'
>
</form>

";

?>

回答1:

I usually do it like this

<td><img src="<?= @$location ? $location : 'default/image.gif' ?>" width="100" height="100" /></td>

That way if $location does not exist, it suppresses the error and outputs the default replacement.

来源：https://stackoverflow.com/questions/5111682/how-do-i-set-a-default-default-image-no-pic-gif-php

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