PHP怎么验证输入的银行卡是否有效
PHP如何验证输入的银行卡是否有效
PHP如何验证输入的银行卡是否有效,我现在在做一个失物录入,录入银行卡的时候,我想验证这个银行卡是否有效,就好像是身份证一样,能验证这串字符是否符合,求完整的代码!听说有个luhn算法,不过这个貌似不太完整。谁给我一个能马上用的function

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