Chris Kankiewicz » PHP

First Friday script updated and simplified

Chris Kankiewicz — Sun, 15 Feb 2009 02:40:04 +0000

NOTE: The latest version of this script can always be found here: http://github.com/PHLAK/first-friday/blob/master/first-friday.php

With this update I have drastically reduced and simpified the code to produce the same results. I did some rigorous testing of my own to make sure this script will calculate the correct date, but that doesn’t mean it’s bullet-proof. If you find a bug, please email me so I can fix it.

first-friday.php

 
  // Calculate next Friday
  for ($x = date('d'); $x &lt;= (date('d') + 6); $x++) {
    $timeStamp = mktime(0,0,0,date('m'),$x,date('Y'));
    if (date('w',$timeStamp) == 5) {
      $nextFriday = mktime(0,0,0,date('m'),$x,date('Y'));
    }
  }
  // Check if next Friday is the first friday of the month.
  if (date('d', $nextFriday) &lt;= 7) {
    $firstFriday = $nextFriday;
  } else {
  // Calculate first Friday of next month
    for ($x = 1; $x &lt;= 7; $x++) {
      $timeStamp = mktime(0,0,0,date('m')+1,$x,date('Y'));
      if (date('w',$timeStamp) == 5) {
        $firstFriday = mktime(0,0,0,date('m')+1,$x,date('Y'));
      }
    }
  }
 
  // Echo next first Friday
  echo date("F j, Y", $firstFriday);
 
?&gt;

Calculate the first Friday of next month with PHP

Chris Kankiewicz — Tue, 21 Oct 2008 05:50:40 +0000

UPDATE: This script has been updated, see: http://www.web-geek.net/posts/2009/02/14/first-friday-script-updated-and-simplified/

While developing phx2600.org, I ran into a slight dilemma. The PHX2600 meetings occur once a month on the first Friday of every month, and we wanted to display that on the site. However, it was becoming a tedious chore to change the date once a month manually. So, being the automation addict I am, I thought, why not write a script. So one night I hammered out the following script that will calculate the first Friday of next month:


 
  /***************************************
  *  FILENAME: first-friday.php          *
  *  AUTHOR:   Chris Kankiewicz [PHLAK]  *
  *  WEBSITE:  http://www.web-geek.net   *
  ***************************************/
 
  // START FUNCTIONS
 
  function get_day($describer,$weekday,$reference_date) { // $reference_date format = m-Y
 
    $d = explode('-',$reference_date);
 
    switch ($describer) {
      case 'first': $offset = get_day_offset($reference_date,$weekday); break;
    }
 
    $r = mktime(0,0,0,$d[0],1+$offset,$d[1]);
    return $r;  //returns timestamp format
  }
 
  function get_day_offset($anchor,$target) { //$anchor format = m-Y
 
    $ts = explode('-',$anchor);
    $ts = mktime(0,0,0,$ts[0],'01',$ts[1]);
 
    $anchor = date("w",$ts);
    $target = strtolower($target);
    $days = array(
      'sunday'=>0,
      'monday'=>1,
      'tuesday'=>2,
      'wednesday'=>3,
      'thursday'=>4,
      'friday'=>5,
      'saturday'=>6
    );
 
    $offset = $days[$target] - $anchor;
 
    if ($offset<0) $offset+=7;
 
    return $offset;  //returns 0-6 for use in get_day();
  }
 
  //END FUNCTIONS
 
  $t = getdate(); //Get today's date
 
  $today = date('m-Y',$t[0]); //Display today's date as MM-YYYY
 
  //Calculate Next Month
  if($t[mon] == '12'){
    $nm = '1-'.($t[year]+1);
  } elseif($t[mday] <= '7' && $t[wday] <= '5') {
    $nm = ($t[mon]).'-'.$t[year];
  }	else {
    $nm = ($t[mon]+1).'-'.$t[year];
  }
 
  $date = get_day("first", "friday", $nm);
 
  //Checks if today is after the first friday of the month
  if($t[mon] == date('m',$date)
    && $t[mday] > date('j',$date)
    && $t[mon] == '12') {
      $nm = '1-'.($t[year]+1);
      $ff = get_day("first", "friday", $nm);
  } elseif($t[mon] == date('m',$date)
    && $t[mday] > date('j',$date) && $t[mon] != '12') {
      $nm = ($t[mon]+1).'-'.$t[year];
      $ff = get_day("first","friday",$nm);
  }	else {
    $ff = $date;
  }
 
  // I know this code is crap, deal with it or fix it yourself!
 
  echo date("F j, Y", $ff);
 
?>

I apologies for the crappy code, I was either tired, drunk or both the night I wrote this.

Creating Dynamic Menus with PHP and CSS

Chris Kankiewicz — Mon, 06 Oct 2008 00:25:34 +0000

Want to pep up your web page with some dynamic menus? Here’s a simple solution that only requires a few lines of PHP and CSS.

UPDATE (11/1/08): Simplified the header code and edited the syntax of the list element echo code.

The PHP

Add the following to the top of your page (before the DOCTYPE or HTML tag).


  // Get current page file name
  $page = basename($_SERVER["PHP_SELF"]);
?>

Then add the following to your menu item where you want the class designation to show up.

Each link should have this piece of code in it. Make sure you replace “index.php” with the appropriate file name for the page. Example:


  
     if ($page == "index.php") echo ' class="current"' ?>>Home
    >Resume
    >Photography
    >About
    >Contact

Note: the 2 chevrons “>>” at the end are on purpose. One closes the PHP tag the other closes the ‘a’ tag.

The CSS

Lastly, add the following element to your style sheet and style it as you please.

#navigation ul li a.current {
  background-color: #FFF;
  border-bottom: 1px solid #FFF;
}

This process will result in the following: