$re = '/^(?=^([^)(]*\(((?>[^)(]+)|(?1))*\)[^)(]*)*$)(?=^([^][]*\[((?>[^][]+)|(?3))*\][^][]*)*$)(?=^([^}{]*\{((?>[^}{]+)|(?5))*\}[^}{]*)*$)(?!^\(.*)(?!.*\(.{250}\).*)(?=.*\[.{250}\].*)(?=.*\{.{250}\}.*)(?=.*\[.\(\).\{\}.\].*)(?=.*\}...\[...\[...\]...\]...\{.*)(?=.*\(\(..\(\(.{68}\(\(\)\).{43}\)\)\)\).*)(?=.*\{..\{..\{.{65}\{\}\{\}.{33}\{\}.{107}\}\}.\}.*)(?=.*\[\{\{\[\(\{.*)(?=.*\[\[..\[.{6}\[.{6}\]\]...\]\].{6}\[..\]..\[\].*)(?=.*\]\]\}\}\}.\)\)\)\).{96}\]\}\}\]\]\]\}\]\]\].\)\]\].*)(?=.*\]..\).{6}\(.{7}\{.{5}\[...\[.{5}\{\[.*)(?=.*\[.{87}\{.{45}}{.{38}}.{27}\].*)(?=.*\(\{.{32}\(.{20}\{.{47}\].{43}\{\{.{25}\}\}.{18}\].{5}\}....\}.{5}\).*)(?=.*\{.{12}\(.{5}\(...\(...\{\[.\{\[\[.*)(?=.*\{\(.{21}\).{8}\}.{14}\[.{7}\]..\{.{5}\{\}....\}.*)(?=.*\(.\{.{49}\{.{16}\}.{25}\}.{66}\).*)(?!.*\(\{\(\(.*)(?!.*\(\)\[\].*)(?=(.*?\].*?\)){15,}.*)(?=(.*\[.*\(.*\{){5,9}.*)(?=.*\({3}.{105}\[{3}.{105}[^}{].*)(?=.*\(..\).{5}\(\)....\}\}\].\{\{\[.{22}\[.{35}\}\}\].*)(?!.*\(\(.{178}\])(?=(.*\[..\]){8,10}.*)(?!(.*\([^\(\)]{5}\(){4,}.*).{63}(.{6}).{130}\11.{51}$/';
$str = '[((({.[.[](){{}{].{.(({){(.[]()....}}].{{[[....).[..]()(}..[..]([....(([{((({).](){.{}{}{}....}[[()[}}][{{[({[[[.]]}()]].{}.]{[..]{.[]]}}}())))(())[(.].{[.{[[..[()].()}{{.[...[}{.]..)]...{.])))).}}..([......{.....[.]}[...}.{[.}...}})}.))).]}}]]]}]]].)]]..}';
preg_match($re, $str, $matches, PREG_OFFSET_CAPTURE, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php