URL Validate

[rohit]

any body can help me to provide the code for URL validate thru PHP

[lorento]

$uri = 'http://some-domain-name.org';
if( preg_match(
'/^(http|https):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}'
.'((:[0-9]{1,5})?\/.*)?$/i' ,$uri))
{
echo $uri . ' is a valid url';
}
else
{
echo $uri . ' is NOT a valid url';
}

--
http://www.nusaland.com
http://uk.nusaland.com

rohit wrote:

any body can help me to provide the code for URL validate thru PHP

[Jerry Stuckle]

lorento wrote:

$uri = 'http://some-domain-name.org';
if( preg_match(
'/^(http|https):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}'
.'((:[0-9]{1,5})?\/.*)?$/i' ,$uri))
{
echo $uri . ' is a valid url';
}
else
{
echo $uri . ' is NOT a valid url';
}

--
http://www.nusaland.com
http://uk.nusaland.com

rohit wrote:

>>any body can help me to provide the code for URL validate thru PHP

I'm not a regex expert (barely a beginner) - but two problems with this one.

A uri does not include http or https. That is the protocol being used.
It could be ftp://, for instance.

And this one will fail with some tlds, such as museum.

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attgl obal.net
=============== ===

[Armando Padilla]

Jerry Stuckle wrote:

lorento wrote:

>$uri = 'http://some-domain-name.org';
if( preg_match(
'/^(http|https):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,5}'
.'((:[0-9]{1,5})?\/.*)?$/i' ,$uri))
{
echo $uri . ' is a valid url';
}
else
{
echo $uri . ' is NOT a valid url';
}

--
http://www.nusaland.com
http://uk.nusaland.com

rohit wrote:

>>any body can help me to provide the code for URL validate thru PHP

I'm not a regex expert (barely a beginner) - but two problems with this
one.

A uri does not include http or https. That is the protocol being used.
It could be ftp://, for instance.

And this one will fail with some tlds, such as museum.

loreto, nice work.

aside from the mentioned ".museum" and "ftp" (which can be easily edited
in by using the code below) it looks good.
=== UPDATE regex based off of loreto initial post =====
$uri = 'http://some-domain-name.org';
if( preg_match(
'/^(http|https|ft p):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,6}'
.'((:[0-9]{1,5})?\/.*)?$/i' ,$uri))
{
echo $uri . 'oh snap! its a valid URL';
}
else
{
echo $uri . 'Wow i hate you....this is not a valid URL';
}
=============== =============== =============== ==============

[John Dunlop]

Armando Padilla:

Jerry Stuckle wrote:

A uri does not include http or https. That is the protocol being used.
It could be ftp://, for instance.

And this one will fail with some tlds, such as museum.

=== UPDATE regex based off of loreto initial post =====
$uri = 'http://some-domain-name.org';
if( preg_match(
'/^(http|https|ft p):\/\/[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,6}'
.'((:[0-9]{1,5})?\/.*)?$/i' ,$uri))

I think you missed Jerry's point. The ftp scheme name was one example.
What are you going to do about other scheme names? For example,
mailto, which doesn't have a '//' authority part. Are you going to
keep track of new scheme names? What about new TLDs?

--
Jock

[dawnerd]

rohit wrote:

any body can help me to provide the code for URL validate thru PHP

You can always ping the url. If you get a ping back then it is probably
valid :p

Very simple...

[Jerry Stuckle]

dawnerd wrote:

rohit wrote:

>>any body can help me to provide the code for URL validate thru PHP

You can always ping the url. If you get a ping back then it is probably
valid :p

Very simple...

Yes, but not getting a ping back doesn't mean it's not there. May
servers (including mine) are set to ignore ICMP echo requests (pings).

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attgl obal.net
=============== ===

[Pierre Jelenc]

Jerry Stuckle <js*******@attg lobal.netwrites :

dawnerd wrote:

You can always ping the url. If you get a ping back then it is probably
valid :p

Yes, but not getting a ping back doesn't mean it's not there. May
servers (including mine) are set to ignore ICMP echo requests (pings).

Send a command to GET headers with http_head(). With ftp, I guess
something with ftp_nlist(). In either case, parse the result appro-
priately.

Pierre

--
Pierre Jelenc | New on Home Office Records: Ethan Lipton
| www.homeofficerecords.com www.ethanlipton.com
The Gigometer | Pepper Of The Earth: the HO blog
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