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Php – get mime type and extension of image in variable or file without extension

I have telegram bot receiving a photo in webhook. I can download photo but not get file extension. How to get image extension and optionally mime-type from variable containing photo?

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  1. 0

    You can use the buffer method on an finfo instance to get the mime type of an arbitrary string blob if you don’t want to write it to disk first:

    // Just a small image from http://probablyprogramming.com/2009/03/15/the-tiniest-gif-ever
$blob = base64_decode('R0lGODlhAQABAIABAP///wAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==');

$finfo = new finfo(FILEINFO_MIME);
echo $finfo->buffer($blob) . "n";

// Result: image/gif; charset=binary

    Demo: https://3v4l.org/EJ95S

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  2. 0

    How to retrieve the values in my excel file with PHPExcel using WHILE or FOR loop
    i have data in my worksheet between cells A8:A23 AND F8:F23. I need to transfer those data to mysql database with a submission button using phpexcel
    i have an input file name=’fichier’.

    Someone can help me please ?

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