身高体重评分

niucloud/app/common.php

@@ -1151,4 +1151,71 @@ function decryptWechatPayNotify($ciphertext, $nonce, $associatedData, $key)
 function isPhone($mobile)
 {
     return preg_match('/^1[3456789]\d{9}$/', $mobile);
+}
+
+/**
+ * 体测评分
+ *  @param int $age年龄
+ *  @param int $gender性别（ 1:男，2:女）
+ *  @param int $height身高
+ *  @param int $weight体重
+ */
+function calculateChildHealthScore($age, $gender, $height, $weight) {
+    // WHO 标准数据（简化版）——单位：cm/kg
+    // 示例使用中位数及上下限估算（实际可使用更精确的Z-score或百分位表）
+
+    $reference = [
+        '1' => [
+            3 => ['height_median' => 96.5, 'height_low' => 91.5, 'height_high' => 101.5, 'weight_median' => 14.2, 'weight_low' => 12.3, 'weight_high' => 16.5],
+            5 => ['height_median' => 110.0, 'height_low' => 104.5, 'height_high' => 115.5, 'weight_median' => 18.0, 'weight_low' => 15.6, 'weight_high' => 21.0],
+            7 => ['height_median' => 123.0, 'height_low' => 117.0, 'height_high' => 129.0, 'weight_median' => 22.5, 'weight_low' => 19.5, 'weight_high' => 26.0],
+            10 => ['height_median' => 138.0, 'height_low' => 131.0, 'height_high' => 145.0, 'weight_median' => 29.5, 'weight_low' => 25.5, 'weight_high' => 34.0],
+            12 => ['height_median' => 148.5, 'height_low' => 141.0, 'height_high' => 156.0, 'weight_median' => 36.0, 'weight_low' => 31.0, 'weight_high' => 42.0],
+            15 => ['height_median' => 164.0, 'height_low' => 155.0, 'height_high' => 173.0, 'weight_median' => 50.0, 'weight_low' => 43.0, 'weight_high' => 58.0],
+            18 => ['height_median' => 170.0, 'height_low' => 161.0, 'height_high' => 179.0, 'weight_median' => 58.0, 'weight_low' => 50.0, 'weight_high' => 67.0],
+        ],
+        '2' => [
+            3 => ['height_median' => 95.5, 'height_low' => 90.5, 'height_high' => 100.5, 'weight_median' => 13.8, 'weight_low' => 12.0, 'weight_high' => 16.0],
+            5 => ['height_median' => 109.0, 'height_low' => 103.5, 'height_high' => 114.5, 'weight_median' => 17.8, 'weight_low' => 15.3, 'weight_high' => 20.5],
+            7 => ['height_median' => 122.0, 'height_low' => 116.0, 'height_high' => 128.0, 'weight_median' => 22.0, 'weight_low' => 19.0, 'weight_high' => 25.5],
+            10 => ['height_median' => 137.0, 'height_low' => 130.0, 'height_high' => 144.0, 'weight_median' => 29.0, 'weight_low' => 25.0, 'weight_high' => 33.5],
+            12 => ['height_median' => 150.0, 'height_low' => 142.0, 'height_high' => 158.0, 'weight_median' => 37.0, 'weight_low' => 31.5, 'weight_high' => 43.0],
+            15 => ['height_median' => 158.0, 'height_low' => 150.0, 'height_high' => 166.0, 'weight_median' => 48.0, 'weight_low' => 41.0, 'weight_high' => 56.0],
+            18 => ['height_median' => 159.0, 'height_low' => 152.0, 'height_high' => 166.0, 'weight_median' => 53.0, 'weight_low' => 46.0, 'weight_high' => 61.0],
+        ]
+    ];
+
+    if (!isset($reference[$gender][$age])) {
+        return 0; // 年龄不在范围内
+    }
+
+    $data = $reference[$gender][$age];
+
+    // 身高评分（线性插值）
+    $height_score = 100;
+    if ($height < $data['height_low']) {
+        $height_score = max(0, 50 * ($height - $data['height_low']) / ($data['height_median'] - $data['height_low']));
+    } elseif ($height > $data['height_high']) {
+        $height_score = max(0, 50 + 50 * ($data['height_high'] - $height) / ($data['height_high'] - $data['height_median']));
+    } else {
+        $height_score = 50 + 50 * (abs($height - $data['height_median']) / ($data['height_median'] - $data['height_low'])) * ($height > $data['height_median'] ? 1 : -1);
+        $height_score = max(0, min(100, $height_score));
+    }
+
+    // 体重评分
+    $weight_score = 100;
+    if ($weight < $data['weight_low']) {
+        $weight_score = max(0, 50 * ($weight - $data['weight_low']) / ($data['weight_median'] - $data['weight_low']));
+    } elseif ($weight > $data['weight_high']) {
+        $weight_score = max(0, 50 + 50 * ($data['weight_high'] - $weight) / ($data['weight_high'] - $data['weight_median']));
+    } else {
+        $weight_score = 50 + 50 * (abs($weight - $data['weight_median']) / ($data['weight_median'] - $data['weight_low'])) * ($weight > $data['weight_median'] ? 1 : -1);
+        $weight_score = max(0, min(100, $weight_score));
+    }
+
+    // 综合评分
+    $total_score = ($height_score + $weight_score) / 2;
+
+    // 四舍五入取整
+    return round($total_score);
 }