php regexp to variable

Question

How I can write regexp to variable in regular expression?

$string = 'Test regular expression';
preg_match('#test (^\s+) expression#is', $string, $b);

//$b[1] = 'regular'; // But I need another way.

I want to get

$b['string'] = 'regular'; // Not using $b['string'] = $b[1];

Maybe

$regex = '#test (^\s+)/string/ expression#is';

Maybe there's a way to write a regular expression into an array variable in the regular expression?

Thank you, I hope you understand me.

qbert220 · Accepted Answer · 2011-04-15 10:37:27Z

1

You can do this with named capturing expressions:

preg_match('#test (?P<string>[^\s]+) expression#is', $string, $b);
print_r($b);

answered Apr 15, 2011 at 10:37

qbert220

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1 Comment

Edit: Added missing [] round the ^\s