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php and mysql


michela

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if (!(strlen($_POST['student_id']) >= 6 && strlen($_POST['student_id']) <= 8)) {

error ('Student ID number is either too long or too short!\\n'.

'Please enter your 7 digit student ID number');

 

This is what I am using to make sure the user only inputs 7 numbers for their student id number, would anyone know how to make sure that it is exactly 7 numbers and not a space added in the middle?

 

Student id numbers are all like this - 1234567

 

I wish to avoid - 123 567

 

thanks

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