I need a php regex for a numeric value, including "-" and ",",

Question

In php, is_numeric function does not allow '-' and ','.

-1

Rajesh purohit Aug 9 '11 at 10:24

3 answers

arnaud576875 · Answer 1 · 2011-08-09T10:26:05+0000

This should work:

preg_match("#^-?\d+(,\d+)?$#", "-1,2", $match);

Matching one or more digits:

"#\d+#"

Optionally matches a comma followed by one or more digits:

"#\d+(,\d+)?#

It is not necessary to match the "-" sign:

"#-?\d+(,\d+)?#"

Allow only this and nothing:

"#^-?\d+(,\d+)?$#"

Jjj · Answer 2 · 2011-08-09T10:32:46+0000

is_numeric()gives negative numbers. I think the problem is only a comma.

is_numeric( str_replace( ',', '.', $number ) );

Chirayu · Answer 3 · 2011-08-09T10:33:50+0000

^[0-9 ,-]+$