该代码检查上传是否正常，以及已上传的文件格式是否正确，但我总是收到“您上传的第一张图片不属于受支持的文件类型”的响应。从剧本。我不知道为什么会这样。
if ( isset( $_POST[ 'submit' ] ) ) {
$dir_1 = './images/';
$thumb_1 = '.images/thumb';
//making sure the uploaded file transfer was successful
if ( $_FILES[ 'pic1' ][ 'error' ] != UPLOAD_ERR_OK ) {
switch ( $_FILES[ 'pic1' ][ 'error' ] ) {
case UPLOAD_ERR_INI_SIZE:
die( 'The uploaded 1st image exceeds the upload_max_filesize directive ' . 'in php.ini.' );
break;
case UPLOAD_ERR_FORM_SIZE:
die( 'The uploaded 1st exceeds the MAX_FILE_SIZE directive that ' . 'was specified in the HTML form.' );
break;
case UPLOAD_ERR_PARTIAL:
die( 'The uploaded 1st image was only partially uploaded.' );
break;
case UPLOAD_ERR_NO_FILE:
die( 'No 1st image was uploaded.' );
break;
case UPLOAD_ERR_NO_TMP_DIR:
die( 'The server is missing a temporary folder.' );
break;
case UPLOAD_ERR_CANT_WRITE:
die( 'The server failed to write the uploaded the uploaded 1st image to disk.' );
break;
case UPLOAD_ERR_EXTENSION:
die( '1st image upload stopped by extension.' );
break;
} //$_FILES[ 'pic1' ][ 'error' ]
} //$_FILES[ 'pic1' ][ 'error' ] != UPLOAD_ERR_OK
// making sure the file is being uploaded
$error = 'The 1st image you have uploaded was not of supported filetype.';
switch ( $type ) {
case IMAGETYPE_GIF:
$image_1 = imagecreatefromgif( $_FILES[ 'pic1' ][ 'tmp_name' ] ) or die( $error );
break;
case IMAGETYPE_JPEG:
$image_1 = imagecreatefromjpeg( $_FILES[ 'pic1' ][ 'tmp_name' ] ) or die( $error );
break;
case IMAGETYPE_PNG:
$image_1 = imagecreatefrompng( $_FILES[ 'pic1' ][ 'tmp_name' ] ) or die( $error );
break;
default:
die( $error );
} //$type
$image_date_1 = @date( 'Y-m-d' );
list( $width, $height, $type, $attr ) = getimagesize( $_FILES[ 'pic1' ][ 'tmp_name' ] );
}