image_type_to_mime_type

(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)

image_type_to_mime_type — Obtém o Mime-Type para o tipo de imagem retornado por getimagesize, exif_read_data, exif_thumbnail e exif_imagetype

image_type_to_mime_type(int $image_type): string

A função image_type_to_mime_type() determina o Mime-Type (tipo de mídia) para uma constante IMAGETYPE.

Os valores retornados são os seguintes:

**Constantes de valores de retorno**
`image_type`	Valor retornado
`IMAGETYPE_GIF`	`image/gif`
`IMAGETYPE_JPEG`	`image/jpeg`
`IMAGETYPE_PNG`	`image/png`
`IMAGETYPE_SWF`	`application/x-shockwave-flash`
`IMAGETYPE_PSD`	`image/psd`
`IMAGETYPE_BMP`	`image/bmp`
`IMAGETYPE_TIFF_II` (ordem de bytes Intel - little endian)	`image/tiff`
`IMAGETYPE_TIFF_MM` (ordem de bytes Motorola - big endian)	`image/tiff`
`IMAGETYPE_JPC`	`application/octet-stream`
`IMAGETYPE_JP2`	`image/jp2`
`IMAGETYPE_JPX`	`application/octet-stream`
`IMAGETYPE_JB2`	`application/octet-stream`
`IMAGETYPE_SWC`	`application/x-shockwave-flash`
`IMAGETYPE_IFF`	`image/iff`
`IMAGETYPE_WBMP`	`image/vnd.wap.wbmp`
`IMAGETYPE_XBM`	`image/xbm`
`IMAGETYPE_ICO`	`image/vnd.microsoft.icon`
`IMAGETYPE_WEBP`	`image/webp`
`IMAGETYPE_AVIF`	`image/avif`

Example #1 Exemplo de image_type_to_mime_type()

<?php
header("Content-type: " . image_type_to_mime_type(IMAGETYPE_PNG));
?>

Note:
Esta função não requer a biblioteca de imagens GD.