[SOLVED] checking file name

[ballouta]

Hello

 

Kindly I want to validate an uploaded file before making any proccess on it.

 

1) The name should be Numbers ONLY (no spaces/letters or signs)

2) The name should be 15 digits

3) The file extension should me .ask ONLY

 

Many thanks in advance

[Adam]

You could use the following code to determine they have a valid filename:

 

if (!preg_match('/[\d]{15}\.ask/', $_FILES['input_name']['name']))
{
    // invalid
}
else
{
    // valid
}

 

Not tested but should work no problems. I'm assuming you know how to do the rest?

[Adam]

After a quick check I realised the regex is wrong, though this seems to work:

 

\b[\d]{15}\b\.ask

[.josh]

\d does not need to be wrapped in brackets because it is itself a shorthand character class.  But you don't really want to use it anyways, as \d accepts more than strictly 0-9.  Better to explicitly use 0-9.  Also your original regex probably wasn't working due to you not anchoring boundaries to it.  You kind of fixed it by adding word boundary shorthands to it but that just stops someone from entering in "blah232343..." not "blah 234324..." or "blah@234324..." etc... also you put the 2nd one in the wrong place.  The anchors you really want are the start and end of line anchors ^...$

 

/^[0-9]{15}\.ask$/

 

 

[ballouta]

thank you all

the first reg mixed with the last post is working correctly