Created
December 16, 2013 15:07
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PHPで西暦→和暦変換
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<?php | |
//write kazua | |
//JQueryのコントロールを使ったりして2000/12/23等の形式の文字列が渡すように限定するかんじ | |
function convGtJDate($src) { | |
list($year, $month, $day) = explode("/", $src); | |
if (!@checkdate($month, $day, $year) || $year < 1869 || strlen($year) !== 4 | |
|| strlen($month) !== 2 || strlen($day) !== 2) return false; | |
$date = str_replace("/", "", $src); | |
$gengo = ""; | |
$wayear = 0; | |
if ($date >= 19890108) { | |
$gengo = "平成"; | |
$wayear = $year - 1988; | |
} elseif ($date >= 19261225) { | |
$gengo = "昭和"; | |
$wayear = $year - 1925; | |
} elseif ($date >= 19120730) { | |
$gengo = "大正"; | |
$wayear = $year - 1911; | |
} else { | |
$gengo = "明治"; | |
$wayear = $year - 1868; | |
} | |
switch ($wayear) { | |
case 1: | |
$wadate = $gengo."元年".$month."月".$day."日"; | |
break; | |
default: | |
$wadate = $gengo.sprintf("%02d", $wayear)."年".$month."月".$day."日"; | |
} | |
return $wadate; | |
} | |
//test | |
echo convGtJDate("1981/12/02").PHP_EOL; | |
echo convGtJDate("1912/07/30").PHP_EOL; | |
echo convGtJDate("1927/05/16").PHP_EOL; | |
echo convGtJDate("1890/01/16").PHP_EOL; | |
var_dump(convGtJDate("1866/01/16")); | |
var_dump(convGtJDate("1866/01/")); | |
var_dump(convGtJDate("1890/1/16")); | |
var_dump(convGtJDate("1981/12/2")); |
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