garcon

# OCR PDF file

ocrmypdf -l ces input.pdf output.pdf

# -l                    => language: -l eng+deu, -l ces
# --sidecar             => Generate text files that contain the same text recognized by OCR
# --title TITLE         => Set document title (place multiple words in quotes)
# --author AUTHOR       => Set document author
# --subject SUBJECT     => Set document subject description
# --keywords KEYWORDS   => Set document keywords

garcon

// JavaScript
document.getElementsByTagName("html")[0].webkitRequestFullScreen();
// document.getElementsByTagName("html")[0].requestFullscreen();
// document.getElementsByTagName("html")[0].msRequestFullscreen();

garcon

<?php
// example code

setlocale(LC_CTYPE, 'cs_CZ');

$str = "Běloučký kůň úpěl ďábelské ódy $   ' 1234";

print
  preg_replace('/(?<=-)-+/', '',                   // Replace all duplicase hyphens with one only
    preg_replace( '/[^-a-z0-9]/', '',              // Strip all non-alfanumeric characters or hyphens