- array_map: documentation ( source)
- print_r: documentation ( source)
- preg_match_all: documentation ( source)
- date: documentation ( source)
<?php
function standard_date_format($str) {
preg_match_all('/(\d{1,2}) (\w+) (\d{4})/', $str, $matches);
$dates = array_map("strtotime", $matches[0]);
$result = array_map(function($v) {return date("Y-m-d", $v); }, $dates);
return $result;
}
$str1 = "Company registered on 16 March 2003";
$str2 = "Activity between 10 May 2006 an 10 July 2008 - no changes.";
print_r(standard_date_format($str1));
print_r(standard_date_format($str2));