Very useful 9 PHP code snippets, _ PHP Tutorial

9 Very useful PHP code snippets ,. 9 Very useful PHP code snippets. This article will share some of the most useful PHP code snippets I have collected. Let's take a look! 1. create nine PHP code snippets that are useful for embedding a data URI,

In this article, we will share some of the most useful PHP code snippets I have collected. Let's take a look!
1. create a data URI

Data URI is useful when embedding images into HTML, CSS, and JS to save HTTP requests and reduce the loading time of websites. The following function creates a data URI based on $ file.

function data_uri($file, $mime) { $contents=file_get_contents($file); $base64=base64_encode($contents); echo "data:$mime;base64,$base64";}

2. Merge JavaScript and CSS files

Another good suggestion for minimizing HTTP requests and saving page loading time is to merge your CSS and JS files. Although I suggest using specialized plug-ins (such as minify), it is also very easy to use PHP to merge files. Let's take a look:

Function combine_my_files ($ array_files, $ destination_dir, $ dest_file_name) {if (! Is_file ($ destination_dir. $ dest_file_name) {// continue only if file doesn't exist $ content = ""; foreach ($ array_files as $ file) {// loop through array list $ content. = file_get_contents ($ file); // read each file} // You can use some sort of minifier here // minify_my_js ($ content); $ new_file = fopen ($ destination_dir. $ dest_file_name, "w"); // open file for writing fwrite ($ new_file, $ content); // write to destination fclose ($ new_file); return'