php 带逗号千位符数字的处理方法
php 带逗号千位符数字的处理方法,需要的朋友可以参考下。
通常用number_format(); 来格式化数字,默认情况千位符是用逗号间隔的,比如:
代码如下:
echo number_format("10000.01231", 2);
//取小数点后2位,输出的结果为:10,000.01 千位默认是用逗号间隔。
如果我们后台验证从客户端获取来的这种格式的数字就有点费劲了。
老修通常用 filter_input(INPUT_POST,"price",FILTER_VALIDATE_FLOAT) 来验证价格,如果是带逗号的千位符就会获取不到。
所以在确认输入是数字的时候就要先过滤掉所有的千位符,然后再验证。
其实很少有人会带千位符输入数字的,除非是复制的或者是把原来输出的值再提交。
在输出的时候我们就可以尽量少用带有千位符的数字格式, 输出可以这样写:
代码如下:
format_number("10000.01231",2,".","");
//这样输出的就是10000.01

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