PHP: how to read PDF files online

This article mainly introduces how PHP can read PDF files online and enable the function of reading and displaying PDF files online, for more information about how to use PHP to read PDF files online, see the following example. Share it with you for your reference. The specific implementation method is as follows:

<? Phpif (! Function_exists ('read _ pdf ') {function read_pdf ($ file) {if (strtolower (substr (strrchr ($ file,'. '), 1 ))! = 'PDF ') {echo' file format is incorrect. '; return;} if (! File_exists ($ file) {echo 'file does not exist'; return;} header ('content-type: application/pdf '); header ('filename = '. $ file); readfile ($ file); }}read_(('python_study.pdf ');

I hope this article will help you with php programming.