PHP Snippets
« 1 2age_days
Information
(PHP Version >= 3.0.6)Functions used in this snippet: str_replace, date, substr, strlen.
Description
int age_days( mixed age[, mixed now] )
Takes a date and translates it into how many days it has been since the current time. If the optional now parameter is set, the age will be in days since now.
The date must be formatted in one of the following ways.
01/05/83
010583
01051983
01-05-83
01 05 1983
01,05,83
The year can either be 2 or 4 digits, but it must go month then year and each must be 2 digits long.
Snippet
<?php
function age_days($age, $now=NULL){
$time = array();
$age = str_replace(array('-', '\\', '/', ' ', ','), '', $age);
if($now === NULL){
$time['cd'] = date('d');
$time['cm'] = date('m');
$time['cy'] = date('Y');
}else{
$now = str_replace(array('-', '\\', '/', ' ', ','), '', $now);
$time['cm'] = substr($now, 0, 2);
$time['cd'] = substr($now, 2, 2);
$time['cy'] = substr($now, 4);
$time['cy'] = strlen($time['cy']) > 3 ? $time['cy'] : ($time['cy'] > date('y') ? '19' . $time['cy'] : '20' . $time['cy']);
}
$time['bm'] = substr($age, 0, 2);
$time['bd'] = substr($age, 2, 2);
$time['by'] = substr($age, 4);
$time['by'] = strlen($time['by']) > 3 ? $time['by'] : ($time['by'] > date('y') ? '19' . $time['by'] : '20' . $time['by']);
$time['fd'] = $time['cd'] - $time['bd'];
if($time['fd'] < 0){
$time['fd'] = 31 + $time['fd'];
$time['cm']--;
}
$time['fm'] = $time['cm'] - $time['bm'];
if($time['fm'] < 0){
$time['fm'] = 12 + $time['fm'];
$time['cy']--;
}
$time['fy'] = $time['cy'] - $time['by'];
return (($time['fy'] * 365) + ($time['fm'] * 31) + $time['fd']);
}
?>
Example
age_days Can be used in the following way:
<?php
echo age_days('110583'); // age in days (as of 07/13/05 it is 7921)
echo age_days('11-05-1983', '07-13-2005'); // 7921
?>
rating
Information
(PHP Version >= 4.3.0)Functions used in this snippet: file_exists, is_readable, is_array, unserialize, file_get_contents, array_key_exists, array_sum, sizeof, array_merge, fopen, fwrite, serialize, fclose.
Description
str rating( str file, str get [, mixed add ] )
Uses file to store ratings for different values. The values are stored by their get key. If the add parameter is set, a new value will be added to get with the value of add.
Snippet
<?php
function rating($file,$get,$add=NULL){
global $_array;
if(!file_exists($file) || !is_readable($file)){
return 0;
}
$_array = is_array($_array) ? $_array : unserialize(file_get_contents($file));
$_array = is_array($_array) ? $_array : array();
if($add === NULL){
if(array_key_exists($get, $_array)){
$rating = array_sum($_array[$get]) / sizeof($_array[$get]);
}else{
return 0;
}
}else{
$add = is_array($add) ? $add : array($add);
$_array[$get] = array_merge($_array[$get],$add);
$rating = array_sum($_array[$get]) / sizeof($_array);
$fp = fopen($file,'w');
fwrite($fp,serialize($_array));
fclose($fp);
}
return $rating;
}
?>
Example
rating Can be used in the following way:
<?php
// add a vote of 5 to something with an id of 4
echo rating('file.txt', '4', '5'); // returns the average (5 if not previously set)
// add another vote
echo rating('file.txt', '4', '1'); // returns the average (3 using the example from above again (5+1/2))
// get the rating of something
echo rating('file.txt','4');
// returns the rating (using example from above 3 would return again);
echo rating('file.txt', 'newpost');
// gets the rating for the field stored as newpost
?>
Updated on Jul 5th at 6 am.
get_world_pop
Information
(PHP Version >= 3.0.12)Functions used in this snippet: date, strtotime, time, number_format.
Description
str get_world_pop( [int seconds[, bool english]] )
calling get_world_pop with no arguements will return a formatted string of the estimated current world population at that second. If you supply the seconds parameter it will supply the world population for the date as long as it is between the years of 2005 and 2048. If the english value is set to false the formatted string will have periods instead of commas seperating thousands and hundreds etc.
Snippet
<?php
function get_world_pop($seconds=NULL,$english=true){
$pops = array(
"2005" => array( "start" => 6451058790, "added" => 74427813),
"2006" => array( "start" => 6525486603, "added" => 74629207),
"2007" => array( "start" => 6600115810, "added" => 74940532),
"2008" => array( "start" => 6675056342, "added" => 75228043),
"2009" => array( "start" => 6750284385, "added" => 75466071),
"2010" => array( "start" => 6825750456, "added" => 75688866),
"2011" => array( "start" => 6901439322, "added" => 75802963),
"2012" => array( "start" => 6977242285, "added" => 75615963),
"2013" => array( "start" => 7052858248, "added" => 75167390),
"2014" => array( "start" => 7128025638, "added" => 74490498),
"2015" => array( "start" => 7202516136, "added" => 73766792),
"2016" => array( "start" => 7276282928, "added" => 73055605),
"2017" => array( "start" => 7349338533, "added" => 72230253),
"2018" => array( "start" => 7421568786, "added" => 71289623),
"2019" => array( "start" => 7492858409, "added" => 70235773),
"2020" => array( "start" => 7563094182, "added" => 69180831),
"2021" => array( "start" => 7632275013, "added" => 68144353),
"2022" => array( "start" => 7700419366, "added" => 67028250),
"2023" => array( "start" => 7767447616, "added" => 65862519),
"2024" => array( "start" => 7833310135, "added" => 64679285),
"2025" => array( "start" => 7897989420, "added" => 63596858),
"2026" => array( "start" => 7961586278, "added" => 62635490),
"2027" => array( "start" => 8024221768, "added" => 61689308),
"2028" => array( "start" => 8085911076, "added" => 60746079),
"2029" => array( "start" => 8146657155, "added" => 59800227),
"2030" => array( "start" => 8206457382, "added" => 58925303),
"2031" => array( "start" => 8265382685, "added" => 58132001),
"2032" => array( "start" => 8323514686, "added" => 57333600),
"2033" => array( "start" => 8380848286, "added" => 56512857),
"2034" => array( "start" => 8437361143, "added" => 55666984),
"2035" => array( "start" => 8493028127, "added" => 54846652),
"2036" => array( "start" => 8547874779, "added" => 54058633),
"2037" => array( "start" => 8601933412, "added" => 53249683),
"2038" => array( "start" => 8655183095, "added" => 52414904),
"2039" => array( "start" => 8707597999, "added" => 51542658),
"2040" => array( "start" => 8759140657, "added" => 50686755),
"2041" => array( "start" => 8809827412, "added" => 49847392),
"2042" => array( "start" => 8859674804, "added" => 48957732),
"2043" => array( "start" => 8908632536, "added" => 48019825),
"2044" => array( "start" => 8956652361, "added" => 47040969),
"2045" => array( "start" => 9003693330, "added" => 46074635),
"2046" => array( "start" => 9049767965, "added" => 45123225),
"2047" => array( "start" => 9094891190, "added" => 44148176),
"2048" => array( "start" => 9139039366, "added" => 43161841));
$yearly = 31535999; // seconds in a year usually
if($seconds !== NULL){
$year = date('Y',$seconds);
$thisyear = $seconds - strtotime('jan 1 ' . $year . ' 00:00');
}else{
$year = date('Y');
$thisyear = time() - strtotime('jan 1 ' . $year . ' 00:00');
}
$sep = $english ? ',' : '.';
return number_format(($pops[$year]['start'] + (($thisyear / $yearly) * $pops[$year]['added'])),0,'.',$sep);
}
?>
Example
get_world_pop Can be used in the following way:
<?php
echo get_world_pop();
// returns the current world population formatted like 6,578,968,451
echo get_world_pop(strtotime('July 6 2010'));
// returns the world estimated world populating on july 6 2010
echo get_world_pop(NULL,false);
// returns the current world population formatted like 6.578.968.451
?>
get_month
Information
(PHP Version >= 4.05)Functions used in this snippet: in_array, strtolower, array_search, strtotime.
Description
array get_month( str month, mixed year)
Takes a text month and numeric year and returns the unix timestamps for the very beginning of the month, and very end of the month.
Returns false on failure.
Snippet
<?php
function get_month($month,$year){
$months = array('january', 'february', 'march', 'april', 'may', 'june', 'july', 'august', 'september', 'october', 'november', 'december');
$ret = array();
if(in_array(strtolower($month), $months)){
$ret[] = strtotime($month . ' 1, ' . $year . ' 00:00');
$nextmonth = $months[array_search($month,$months)];
$year = $nextmonth === 'january' ? $year++ : $year;
$ret[] = strtotime($nextmonth . ' 1, ' . $year . ' 00:00 -1 second');
return $ret;
}
return false;
}
?>
Example
get_month Can be used in the following way:
<?php
$time = get_month('january','2007');
echo $time[0] . ' ' . $time[1]; // outputs "1167638400 1169798399"
$time = get_month('july',2000);
echo date('r',$time[0]) . ' ' . date('r',$time[1]);
// outputs "Sat, 1 Jul 2000 00:00:00 -0700 Tue, 25 Jul 2000 23:59:59 -0700"
?>
Updated on Jun 26th at 8 am.
timer
Information
(PHP Version >= 4.0.4)Functions used in this snippet: array_sum, microtime, explode, number_format.
Description
float timer([float start,[int num]])
sets a start timer and outputs another timer less start to num decimals.
Snippet
<?php
function timer($start='',$num=8){
if($start === ''){
return array_sum(explode(' ',microtime()));
}else{
return number_format(timer() - $start,$num);
}
}
?>
Example
timer Can be used in the following way:
<?php
$start = timer();
// code to be timed goes here
echo timer($start); // shows elapsed time to 8 decimal places
$start = timer();
// code to be timed goes here
echo timer($start,12); // shows elapsed time to 12 decimal places
?>
Updated on Jul 1st at 4 am.
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