preg_match and foreach

[bouwob]

if (preg_match('/([a-zA-Z]+DM)/', $pieces[3], $matches))
{
foreach($matches as $match)
	{
	$dm = $dm.$match.",";
	echo $dm;
	}
}

 

B-series, 00, B18C5, Integra Type R USDM

 

this is the data that comes in.

 

but the variable prints out "USDM,USDM" when it should print out only 1. There could be more than 1 match though.

 

such as

B-series, 00, B18C5, Integra Type R JDM USDM EDM

 

and that should make $dm = "JDM,USDM,EDM"

 

any ideas

 

tia

 

[effigy]

...the variable prints out "USDM,USDM" when it should print out only 1.

 

Per the documentation:

If matches is provided, then it is filled with the results of search. $matches[0] will contain the text that matched the full pattern, $matches[1]  will have the text that matched the first captured parenthesized subpattern, and so on.

 

There could be more than 1 match though...and that should make $dm = "JDM,USDM,EDM"

 

Also from the docs:

preg_match() returns the number of times pattern matches. That will be either 0 times (no match) or 1 time because preg_match() will stop searching after the first match. preg_match_all()  on the contrary will continue until it reaches the end of subject.