[PHP函数]②--函数参数

创建3行2列的表格

";
    for ($i = 1; $i <= 3; $i++) {
        $table .= "";
        for ($j = 1; $j <= 2; $j++) {
            $table .= "x";
        }
        $table .= "";
    }

    $table .= "";
    return $table;
}

echo createTable();

?>

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";
    for ($i = 1; $i <= $rows; $i++) {
        $table .= "";
        for ($j = 1; $j <= $cols; $j++) {
            $table .= "{$content}";
        }
        $table .= "";
    }

    $table .= "";
    return $table;
}

echo createTable();

?>

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必选参数一定在可选参数之前

";
    for ($i = 1; $i <= $rows; $i++) {
        $table .= "";
        for ($j = 1; $j <= $cols; $j++) {
            $table .= "{$content}";
        }
        $table .= "";
    }

    $table .= "";
    return $table;
}

echo createTable(2, 3);


?>

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