preg replace non numeric

[l0ve2hat3]

I need help replacing any non numeric numbers besides a decimal.

 

so basically the user will either be typing in a float or an integer. 

 

Can someone help me with the regex part of preg_replace? 

[JAY6390]

$output = preg_replace('/[^\d\.]/','',$input);
if(!preg_match('/^\d+(\.d+)?$/', $output)) {
    //Invalid number code here
}else{
    //valid number code here
}

[l0ve2hat3]

thank you

[JAY6390]

No problem

[nrg_alpha]

Jay, you don't need to escape the dot in your character class.. most meta characters loose their special meaning within the class.. the dot is one of those characters that do.. so [^\d.] would also work (no harm in escaping them otherwise, but not necessary).

[JAY6390]

Yeah I do it just out of habit lol