STRTOTIME ÉTENDU (STR2TIME)

<?php
//----------------------------------------//
// str2time.php
// Fonction str2time()
//----------------------------------------//
// Auteur : winzou
// Date de création : 15/09/04
// Date de dernière modification : 15/09/04
//----------------------------------------//

/*
* Cette fonction permet de récupérer le timestamp d'une date string d'après son format
* Le format est celui de la fonction date (cf http://php.net/date)
*/
function str2time($date,$format)
{
$key_letter = array('a','A','B','c','d','D','g','G','h','H','i','I','j','l','m','M','n','O','r','s','S','t','U','w','W','Y','y','z','Z');

$esc_regex_before = array('?','+','.','*','\\');
$esc_regex_after  = array();
foreach($esc_regex_before as $data)
    {$esc_regex_after[] = '\\'.$data;}

$regex = '^'.str_replace($key_letter,'(.*?)',str_replace($esc_regex_before,$esc_regex_after,$format)).'$';

preg_match('`'.$regex.'`',$format,$index_output);
preg_match('`'.stripslashes(stripslashes($regex)).'`',$date,$value_output);

$total = count($value_output)
for($i=1;$i<$total;$i++)
    {$array_date[$index_output[$i]] = $value_output[$i];}

$final_date['heure'] = 0;
$final_date['min']   = 0;
$final_date['sec']   = 0;
$final_date['mois']  = 0;
$final_date['jour']  = 0;
$final_date['annee'] = 0;
$final_date['dec']   = 0;


$array_mois      = array('Jan' => 1,'Feb' => 2,'Mar' => 3,'Apr' => 4,'May' => 5,'Jun' => 6,'Jul' => 7,'Aug' => 8,'Sep' => 9,'Oct' => 10,'Nov' => 11,'Dec' => 12);
$array_mois_long = array('January' => 1,'February' => 2,'March' => 3,'April' => 4,'May' => 5,'June' => 6,'July' => 7,'August' => 8,'September' => 9,'October' => 10,'November' => 11,'December' => 12);


foreach($array_date as $key => $data)
    {
    if(isset($format{strpos($format,$key)-1}))
        {
        if($format{strpos($format,$key)-1} == '\\')
            {continue;}
        }
    
    switch($key)
    {
    case 'd':
        $final_date['jour'] = $data;
        break;
    
    case 'm':
    case 'j':
        $final_date['mois'] = $data;
        break;
    
    case 'Y':
    case 'y':
        $final_date['annee'] = $data;
        break;
    
    case 'a':
    case 'A':
        if($data == 'pm')
            {$final_date['heure'] = $final_date['heure'] + 12;}
        break;
    
    case 'g':
    case 'h':
    case 'G':
    case 'H':
        $final_date['heure'] = $data;
        break;
    
    case 'i':
        $final_date['min'] = $data;
        break;
    
    case 's':
        $final_date['sec'] = $data;
        break;
    
    case 'F':
        $final_date['mois'] = $array_mois_long[$data];
        break;
    
    case 'M':
        $final_date['mois'] = $array_mois[$data];
        break;
    
    case 'c':
        return str2time($data,'Y-m-dTH:i:s+00:00');
        break;
    
    case 'r':
        return str2time($data,'D, d M Y H:i:s +0000');
        break;
    
    case 'I':
        if($data == 0)
            {$final_date['dec'] -= 3600;}
        break;

    } // switch
    }

    
$time = mktime($final_date['heure'],$final_date['min'],$final_date['sec'],$final_date['mois'],$final_date['jour'],$final_date['annee']) + $final_date['dec'];

return $time;
}

// echo str2time('18/08/04 1:21:22 pm','d/m/Y h:i:s a');

?>