Php-mysql Course

Simple PHP function that can be used to read data of a ZIP archive with PHP. The function receives a string with the path-name of the Zip file; and returns a two dimensional Array with data of each file in archive (name, actual_filesize, compressed_size).
// Function to Read ZIP Archive. Returns a two dimensional Array with data of each file in archive
function readZipData($zip_file) {
  // PHP-MySQL Course -
  $zip_data = array();     // will store arrays with data of each file in archive
  $zip = zip_open($zip_file);

  // if the $zip_file is opened, traverse the archive
  if($zip) {
    while ($zip_entry = zip_read($zip)) {
      // adds in $zip_data an array with data of each file in archive
      $zip_data[] = array(
        'name' =>zip_entry_name($zip_entry),
        'actual_filesize' => zip_entry_filesize($zip_entry),
        'compressed_size' => zip_entry_compressedsize($zip_entry)

    return $zip_data;
  else  echo "Failed to open $zip_file";

  /* Example */

//the path-name of the zip file
$zip_file = 'dir/';

// get data of the $zip_file
$zip_data = readZipData($zip_file);

// output the resulted array (with data for archived files)
echo '<pre>';
echo '</pre>';
This example will return an array like this:
array (
  0 => 
  array (
    'name' => 'file1.txt',
    'actual_filesize' => 388984,
    'compressed_size' => 114339,
  1 => 
  array (
    'name' => 'image.jpg',
    'actual_filesize' => 16942,
    'compressed_size' => 16801,
  2 => 
  array (
    'name' => 'audio/music.mp3',
    'actual_filesize' => 16942,
    'compressed_size' => 16806,

Daily Test with Code Example

Which meta tag provides a short description of the page?
<meta content="..."> <meta description="..."> <meta http-equiv="...">
<meta name="description" content="70-160 characters that describes the content of the page" />
Which CSS property is used to stop the wrapping effect of the "float"?
clear text-align position
#some_id {
  clear: both;
Click on the method which gets an array with all the elements in the document that have a specified tag name.
getElementsByName() getElementById() getElementsByTagName()
var divs = document.getElementsByTagName("div");
var nr_divs = divs.length;
Indicate the PHP function which returns the number of elements in array.
is_[) count() strlen()
$arr =[7, 8, "abc", 10);
$nri = count($arr);
echo $nri;        // 4
Read ZIP archive data with PHP

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