Examples using ereg function

bhaggs2702

Hi,

Can someone share useful regular expr samples comptible with ereg?

Thanks,
BS

Weedpacket

Not really; [man]ereg[/man] has been deprecated for five years now (after its use having been discouraged for even longer) and shouldn't be used. the [man]PCRE[/man] functions should be used instead, and any Google search for "Perl-Compatible Regular Expressions" should turn up thousands of expressions for various purposes.

bhaggs2702

Hi There.The packaged application which we are using for business rule creation is built on PHP and uses ereg engine for matching regular expressions. So any help would be appreciated

Weedpacket

So, it's really old, then?

Still, regular expressions are widely used; between searching for "regular expressions" and the [man]ereg[/man] manual page, there are plenty of examples on how to use it (as the manual notes, the expressions used by [man]ereg[/man] are POSIX-compliant).

Whether you can find "examples" that just happen to match your precise business rules well enough for you to copy-and-paste them depends on your business rules.

bradgrafelman

Here's one example...

// regexp that matches (most) valid PHP variable names
$php_var = '[a-zA-Z_][a-zA-Z0-9_]*';

// find and replace patterns
$find = 'ereg(i?) *\( *(["\'])(.*)["\'], *(\$' . $php_var . ')(, *\$' . $php_var . ')? *)';
$fixt = 'preg_match(\2/\3/\1\2, \4\5)';

Example usage:

$data = 'eregi(\'foo?\', $subject, $matches)';
echo eregi_replace($find, $fixt, $data) . "\n";

$data = 'ereg( "([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})", $subject )';
echo eregi_replace($find, $fixt, $data) . "\n";

output:

Deprecated: Function eregi_replace() is deprecated in <file> on line <line>
preg_match('/foo/i', $subject, $matches)

Deprecated: Function eregi_replace() is deprecated in <file> on line <line>
preg_match("/([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})/", $subject)