Calculate the Age in PHP

With the PHP code presented below you can calculate the age between date of birth and current day.
- See the comments in code.

<?php
// object with date of birth
$bday = new DateTime('15.10.1976');    // day.month.year (or: year-month-day)
$now = new DateTime('00:00:00');       // current date-time

// object with the difference between $now and $bday (y = year, m = month, d = day)
$diff = $now->diff($bday);

// output
echo sprintf('%d years, %d month, %d days', $diff->y, $diff->m, $diff->d);
// 37 years, 2 month, 4 days
?>

The following code is similar, calculates the age between two specified dates.

<?php
// object with date of birth
$bday = new DateTime('15.10.1976');    // day.month.year (or: year-month-day)

// object with another specified date (here: 2012-03-01)
$d2 = new DateTime('2012-03-01 00:00:00');

// object with the difference between $d2 and $bday (y = year, m = month, d = day)
$diff2 = $d2->diff($bday);

// output
echo '<br>'. $diff2->y .' years, '. $diff2->m .' month, '. $diff2->d .' days';
// 35 years, 4 month, 15 days
?>

<<-Get the difference between .. -- Zodiac Signs PHP code->>

Daily Test with Code Example

HTML

CSS

JavaScript

PHP-MySQL

Which tag is used to add lists into <ul> and <ol> elements?

<ul>
 <li>http://coursesweb.net/html/</li>
 <li>http://coursesweb.net/css/</li>
</ul>

Which value of the "display" property creates a block box for the content and ads a bullet marker?

block list-item inline-block

.some_class {
  display: list-item;
}

Which instruction converts a JavaScript object into a JSON string.

JSON.parse() JSON.stringify eval()

var obj = {
 "courses": ["php", "javascript", "ajax"]
};
var jsonstr = JSON.stringify(obj);
alert(jsonstr);    // {"courses":["php","javascript","ajax"]}

Indicate the PHP class used to work with HTML and XML content in PHP.

stdClass PDO DOMDocument

$strhtml = '<body><div id="dv1">CoursesWeb.net</div></body>';
$dochtml = new DOMDocument();
$dochtml->loadHTML($strhtml);
$elm = $dochtml->getElementById("dv1");
echo $elm->nodeValue;    // CoursesWeb.net

Last accessed pages

DirectoryIterator to get file and directory info ⁽¹⁹⁸⁹⁾
Dynamic variables in JavaScript ⁽⁷¹⁴²⁾
AJAX Course, free Lessons ⁽⁷⁴¹¹⁾
AJAX and JSON ⁽¹⁰¹⁹⁾
Wake Up! ⁽³⁴⁴⁹⁾

Popular pages this month

Contact page - CoursesWeb ⁽¹⁹⁵⁵⁾
Tabs effect with CSS ⁽¹⁹⁴²⁾
Insert, Select and Update NULL value in MySQL ⁽¹⁰³⁶⁾
Read Excel file data in PHP - PhpExcelReader ⁽⁸³²⁾
PHP getElementById and getElementsByTagName ⁽⁵¹³⁾