PHP上传图片代码

<!DOCTYPE html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Upload an Image</title>
<style type="text/css" title="text/css" media="all">
.error {
font-weight: bold;
color: red;
}
</style>
</head>
<body>
<?php # Script 11.2 - upload_image.php


// Check if the form has been submitted:
if ($_SERVER['REQUEST_METHOD'] == 'POST') {


// Check for an uploaded file:
if (isset($_FILES['upload'])) {

// Validate the type. Should be JPEG or PNG.
$allowed = array ('image/pjpeg', 'image/jpeg', 'image/JPG', 'image/X-PNG', 'image/PNG', 'image/png', 'image/x-png');
if (in_array($_FILES['upload']['type'], $allowed)) {

// Move the file over.
if (move_uploaded_file ($_FILES['upload']['tmp_name'], "F:phpstudy/uploads/{$_FILES['upload']['name']}")) {
echo '<p><em>The file has been uploaded!</em></p>';
} // End of move... IF.

} else { // Invalid type.
echo '<p class="error">Please upload a JPEG or PNG image.</p>';
}


} // End of isset($_FILES['upload']) IF.

// Check for an error:
if ($_FILES['upload']['error'] > 0) {
echo '<p class="error">The file could not be uploaded because: <strong>';

// Print a message based upon the error.
switch ($_FILES['upload']['error']) {
case 1:
print 'The file exceeds the upload_max_filesize setting in php.ini.';
break;
case 2:
print 'The file exceeds the MAX_FILE_SIZE setting in the HTML form.';
break;
case 3:
print 'The file was only partially uploaded.';
break;
case 4:
print 'No file was uploaded.';
break;
case 6:
print 'No temporary folder was available.';
break;
case 7:
print 'Unable to write to the disk.';
break;
case 8:
print 'File upload stopped.';
break;
default:
print 'A system error occurred.';
break;
} // End of switch.

print '</strong></p>';

} // End of error IF.

// Delete the file if it still exists:
if (file_exists ($_FILES['upload']['tmp_name']) && is_file($_FILES['upload']['tmp_name']) ) {
unlink ($_FILES['upload']['tmp_name']);
}

} // End of the submitted conditional.
?>

<form enctype="multipart/form-data" action="upload_image.php" method="post">


<input type="hidden" name="MAX_FILE_SIZE" value="524288" />

<fieldset><legend>Select a JPEG or PNG image of 512KB or smaller to be uploaded:</legend>

<p><b>File:</b> <input type="file" name="upload" /></p>

</fieldset>
<div align="center"><input type="submit" name="submit" value="Submit" /></div>


</form>
</body>
</html>

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转载自blog.csdn.net/sinat_30658665/article/details/80777671