I need to validate strings like this:
$string = 'test3-10-2';
I need the penultimate number between hyphens, so in this case ’10’. These are other examples:
$string2 = 'test45-50-178-1'; //match = 178 $string3 = 'test45-580-89-12-1'; //match = 12
Can you help me?
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Answer
this RegExp should do the trick using a positive lookahead: (change 4 to whatever max num of digits you want to allow)
d{1,4}(?=-d{1,4}$)