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+The following is the example-file.php which you can run and test yourself, you can change the first define paramenters for the input/outputs
+
+```php
+<?php
+
+require("./lib.php");
+
+/**
+ * This is a simple example of how to encrypt files with the library
+ * The following code will read the file in chunks instead of loading
+ * the whole thing in memory, trying to keep the "Peak Memory Usage"
+ * as low as possible.
+*/
+
+define("INPUT_FILE",      "./lib.php");
+define("OUTPUT_FILE",     "./testdir/" . "./example.enc.php");
+define("DEC_OUTPUT_FILE", "./testdir/" . "./example.dec.php");
+
+// Make sure the testing folder exists
+if ( !file_exists("./testdir") ) {
+    mkdir("./testdir", 0777, true);
+}
+
+
+// Initialize the class
+$lib = new kpcrypt();
+
+// $lib->setEncryptionBlocks(128); // This will take ~10 times more time, but will use half as much memory.
+// Really the best value is the default one.
+
+$enc_start = round(microtime(true) * 1000);
+
+// Encrypt the file
+$lib->encryptFile(INPUT_FILE, OUTPUT_FILE);
+
+$enc_end = round(microtime(true) * 1000) - $enc_start;
+$dec_start = round(microtime(true) * 1000);
+
+// Decrypt the file as well
+$lib->decryptFile(OUTPUT_FILE, DEC_OUTPUT_FILE);
+
+$dec_end = round(microtime(true) * 1000) - $dec_start;
+
+/**
+ * NOTE: You can also compress the output using gzip
+*/
+
+echo "\n\n";
+echo "Input File Size: " . round(filesize(INPUT_FILE) / 1024 / 1024, 2) . "Mb";
+echo "\n";
+echo "Output File Size: " . round(filesize(OUTPUT_FILE) / 1024 / 1024, 2) . "Mb";
+echo "\n";
+echo "Peak Memory: " . memory_get_peak_usage() / 1024 / 1024 . "Mb"; // Check the memory in Mb
+echo "\n";
+echo "Encryption Time: $enc_end ms\n"; // 9700k = ~210ms ( 4Mb = 100ms )
+echo "Decryption Time: $dec_end ms\n";
+echo "\n";
+$errors = $lib->getErrors();
+echo "Errors: " . ( !empty($errors) ? "\n" . json_encode($errors, JSON_PRETTY_PRINT) : "No Errors!");
+
+```
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