PHP -Regex to validate images and link

Question

I'm validating form fields.I tried this regex for image '/^[.jpg|.png|.gif|.bmp]$/i but i think is regex is not correct.

How do i validated links,i only want to check whether the link has HTTP/HTTPS/WWW

Proper link should be . I do not wnat ot check domain,i see many domains ending in different forms line .rs etc.

Any help would be appreciated!

No your regex shouldnt have starts with .jpg if thats done on the whole name - you would need to show code, errors, etc. — BugFinder
– BugFinder, Commented Jun 19, 2012 at 11:28
@BugFinder:If i upload .jpg ,it is showing upload only images error.My regex is wrong.What is the regex to validate photos. — user1415759
– user1415759, Commented Jun 19, 2012 at 11:29

Aelios · Accepted Answer · 2012-06-19 11:58:17Z

2

Check image format (format case-insensitive):

"([^\s]+(\.(?i)(jpe?g|png|gif|bmp))$)"

Examples :

"Test.jpg" OK
"Test.JPEG" OK
"Test.BMP" OK

Check url (HTTP or HTTPS or WWW):

"((http:\/\/|https:\/\/)?(www.)?(([a-zA-Z0-9-]){2,}\.){1,4}([a-zA-Z]){2,6}(\/([a-zA-Z-_\/\.0-9#:?=&;,]*)?)?)"

answered Jun 19, 2012 at 11:30

Aelios

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2 Comments

:Images and link regex separately.

:What does question mark do in image format.It will only check whether user has uploaded image only not any thing else.

ohaal · Accepted Answer · 2012-06-25 07:38:48Z

0

To validate images, this is the regex:

'/\.(jpg|png|gif|bmp)$/i'

You can add any postfixes as needed.

ohaal

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answered Jun 19, 2012 at 11:42

user1415759