Question

I wonder if you guys can help me creating a regular expression for validating a bank number. the number should be 10 digits and it should start with 1111 thanks

Answer 1

根据这些光谱:

 /^1111d{6}$/

然而,我常常允许在扫描投入中留出空间:

/^s*1111d{6}s*$/

Answer 2

这里不需要经常表达:

if (strlen($number) == 10 && ctype_digit($number) && substr($number, 0, 4) == 1111) { ... }

(如Axeman所示,+1 给他)

Answer 3

1111年后的所有数字:

 /^1{4}d{6}$/

如果在11.11之后出现混血数和字母:

 /^1{4}[a-zA-Z0-9]{6}$/

Answer 4

页: 1

#!/usr/bin/perl
$account = $ARGV[0];
if ($account =~ m/^1{4}d{6}$/) { print "looks like an account number
" }

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