PHP int鑄造如何格式化？

Question

(int)$ref_ios_24_sign/(int)$ref_ios_24 * 100 

Result : 35.7894736842 
Wanted : 35.7 

Answer 1

兩個簡單的選擇：

round(35.7894736842, 1); 
sprintf('%0.1f', 35.7894736842); 

Answer 2

$a = (int)$ref_ios_24_sign/(int)$ref_ios_24 * 100; 
$a = (float)$a; 
number_format ($a , 1) 

PHP: number_format