php函数 array_reduce 统计二维数组 特定key或值的个数统计

$result = Array ( [0] => Array ( [ls_hoase_physician_category] => 常规 [s_ksname] => 口腔颌面外科 [s_startime] => 2025-05-01 [s_endtime] => 2025-05-31 [s_basename] => 口腔内科 ) [1] => Array ( [ls_hoase_physician_category] => 常规 [s_ksname] => 口腔颌面外科 [s_startime] => 2025-12-01 [s_endtime] => 2025-12-31 [s_basename] => 口腔全科 ) [2] => Array ( [ls_hoase_physician_category] => 常规 [s_ksname] => 口腔颌面外科 [s_startime] => 2025-08-01 [s_endtime] => 2025-08-31 [s_basename] => 口腔全科 ) [3] => Array ( [ls_hoase_physician_category] => 并轨研究生 [s_ksname] => 口腔颌面外科 [s_startime] => 2025-12-01 [s_endtime] => 2025-12-31 [s_basename] => 口腔颌面外科 ) [4] => Array ( [ls_hoase_physician_category] => 并轨研究生 [s_ksname] => 口腔颌面外科 [s_startime] => 2025-11-01 [s_endtime] => 2025-11-30 [s_basename] => 口腔颌面外科 ) } //统计特定的key里的值 $category1 = array_reduce($result, function ($carry, $type) { return $type['ls_hoase_physician_category'] == '常规' ? ++$carry : $carry; }, 0); $category2 = array_reduce($result, function ($carry, $type) { return $type['ls_hoase_physician_category'] == '并轨研究生' ? ++$carry : $carry; }, 0); $category1 = 3 $category2 = 2 //统计存在的key的数量 $num = array_reduce($result, function ($carry, $type) { return isset($type['ls_hoase_physician_category']) ? ++$carry : $carry; }, 0); $num = 5 //统计所有值里存在的特定字符串 $num = array_reduce($result, function ($carry, $type) { foreach ($type as $k => $v) { $pos = strpos($v, '科'); if ($pos !== false) { ++$carry; } } return $carry; }, 0); $num = 10