我正在嘗試以下操作：我正在開(kāi)發(fā)一個(gè)函數(shù)來(lái)比較以下格式的兩個(gè)日期：$date = "Mon Sep 14 2020 02:07:25 GMT+0000 (Coordinated Universal Time)";該函數(shù)如下（它有一些用于我的測(cè)試的額外代碼）：private function isMoreRecent($newVariation, $oldVariation) { // dates for testing: $newVariation = "Mon Sep 14 2020 02:07:25 GMT+0000 (Coordinated Universal Time)"; $oldVariation = "Sun Sep 13 2020 12:02:49 GMT+0000 (Coordinated Universal Time)"; // dates for testing: // date: 2020-09-14 02:07:25.0 UTC (+00:00) $newVariationFormat = $this->reformatDate($newVariation); // date: 2020-09-13 12:02:49.0 UTC (+00:00) $oldVariationFormat = $this->reformatDate($oldVariation); if ($newVariationFormat->toDateString() < $oldVariationFormat->toDateString()) { dd('holaaa'); return true; } return false;}“reformatDate”是將字符串日期轉(zhuǎn)換為 Carbon 類型的函數(shù)，如下所示：private function reformatDate($date) { $month = substr($date, 4, 3); $month = intval($this->getMonthNumber($month)); $day = intval(substr($date, 8, 2)); $year = intval(substr($date, 11, 4)); $hour = substr($date, 16, 2); $minutes = substr($date, 19, 2); $seconds = substr($date, 22, 2); return Carbon::create($year, $month, $day, $hour, $minutes, $seconds);}其中 getMonthNumber():private function getMonthNumber($month) { $monthKeyValues = [ '1' => 'Jan', '2' => 'Feb', '3' => 'Mar', '4' => 'Apr', '5' => 'May', '6' => 'Jun', '7' => 'Jul', '8' => 'Ago', '9' => 'Sep', '10' => 'Oct', '11' => 'Nov', '12' => 'Dec', ]; return array_search($month, $monthKeyValues);}
2 回答
湖上湖
TA貢獻(xiàn)2003條經(jīng)驗(yàn) 獲得超2個(gè)贊
最近的日期大于較早的日期。所以你必須改變比較的方向。
為什么不直接比較 Carbon 對(duì)象而不是將它們轉(zhuǎn)換為字符串？嘗試這個(gè)
if ($newVariationFormat->greaterThan($oldVariationFormat))
前面的代碼通常應(yīng)該返回 true；
LEATH
TA貢獻(xiàn)1936條經(jīng)驗(yàn) 獲得超7個(gè)贊
Carbon 對(duì)象還可以與標(biāo)準(zhǔn)運(yùn)算符進(jìn)行比較：
if ($newVariationFormat > $oldVariationFormat)
并且您重新格式化Date可以縮短：
private function reformatDate($date) {
return Carbon::parse(preg_replace('/\s+\(.*\)$/', '', $date));
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