PHP to achieve online reading PDF file method

This article describes the PHP implementation of online reading PDF file method. Share to everyone for your reference. The implementation methods are as follows:

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<?php if (!function_exists (' read_pdf ')) {function read_pdf ($file) {if (Strtolower (substr ($file, '. '), 1)) STRRCHR ' PDF ') {echo ' file format is not correct. '; return;} if (!file_exists ($file)) {echo ' file does not exist '; return;} header (' Content-type:application/pdf '); Header (' filename= '. $file); ReadFile ($file); } read_pdf (' python_study.pdf ');

I hope this article will help you with your PHP program design.