PHP格式化日期,显示“刚刚,几分钟前,几小时前,几天前,几个月前”

<?php
function format_date($time) {
    $nowtime = time();
    $difference = $nowtime - $time;

    switch ($difference) {

        case $difference <= '60' :
            $msg = '刚刚';
            break;

        case $difference > '60' && $difference <= '3600' :
            $msg = floor($difference / 60) . '分钟前';
            break;

        case $difference > '3600' && $difference <= '86400' :
            $msg = floor($difference / 3600) . '小时前';
            break;

        case $difference > '86400' && $difference <= '2592000' :
            $msg = floor($difference / 86400) . '天前';
            break;

        case $difference > '2592000' &&  $difference <= '7776000':
            $msg = floor($difference / 2592000) . '个月前';
            break;
        case $difference > '7776000':
            $msg = '很久以前';
            break;
    }

    return $msg;
}
?>

 

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