带有if语句的foreach循环中的number_format

Question

我有三列数据来自一个表单。我的目标是，如果字段保留为空，则向每个条目添加小数位。例如，我有BMI、身高和体重。如果表单域保留为空，则BMI将有一个小数位，结果为0.0。对于权重，它将是0.00，依此类推。

下面是我现在处理BMI表单域的代码：

$return['is_spouse'] = ($return['is_spouse'] == 1) ? 'Yes' : 'No';
    if($biometric_data) {
        foreach(self::$biometric_fields as $column_name) {
            if($column_name == 'bmi') {
                $biometrics[$column_name] = number_format($bio[$column_name], 1);
                continue;
            }
            $biometrics[$column_name] = $bio[$column_name];
        }
    }

当尝试将身高或体重部分添加到代码中时，BMI变为空白结果，并且数字格式仅应用于身高，就好像跳过了代码的该部分一样。

$return['is_spouse'] = ($return['is_spouse'] == 1) ? 'Yes' : 'No';
    if($biometric_data) {
        foreach(self::$biometric_fields as $column_name) {
            if($column_name == 'bmi') {
                $biometrics[$column_name] = number_format($bio[$column_name], 1);
                continue;
            }
            $biometrics[$column_name] = $bio[$column_name];
        }
    }

    $return['is_spouse'] = ($return['is_spouse'] == 2) ;
    if($biometric_data) {
        foreach(self::$biometric_fields as $column_name) {
            if($column_name == 'height') {
                $biometrics[$column_name] = number_format($bio[$column_name], 2);
                continue;
            }
            $biometrics[$column_name] = $bio[$column_name];
        }
    }

Answer 1

您有两个foreach循环，因此在第二个循环中，它会在运行以下命令时重置'bmi‘字段：

$biometrics[$column_name] = $bio[$column_name];

您需要将两个循环合并为一个：

foreach(self::$biometric_fields as $column_name) {
        if($column_name == 'height') {
            $biometrics[$column_name] = number_format($bio[$column_name], 2);
            continue;
        } else if($column_name == 'bmi') {
            $biometrics[$column_name] = number_format($bio[$column_name], 1);
            continue;
        }
        $biometrics[$column_name] = $bio[$column_name];
    }