Array f_get_meta_tags(CStrRef filename, bool use_include_path /* = false */) {
String f = f_file_get_contents(filename);
Variant matches;
f_preg_match_all("/<meta\\s+name=\"(.*?)\"\\s+content=\"(.*?)\".*?>/s",
f, ref(matches), k_PREG_SET_ORDER);
Array ret = Array::Create();
for (ArrayIter iter(matches); iter; ++iter) {
Array pair = iter.second();
ret.set(normalize_variable_name(pair[1].toString()), pair[2]);
}
return ret;
}
bool TestExtPreg::test_preg_match_all() {
Variant matches;
f_preg_match_all("/\\(? (\\d{3})? \\)? (?(1) [\\-\\s] ) \\d{3}-\\d{4}/x",
"Call 555-1212 or 1-800-555-1212", ref(matches));
VS(f_print_r(matches, true),
"Array\n"
"(\n"
" [0] => Array\n"
" (\n"
" [0] => 555-1212\n"
" [1] => 800-555-1212\n"
" )\n"
"\n"
" [1] => Array\n"
" (\n"
" [0] => \n"
" [1] => 800\n"
" )\n"
"\n"
")\n");
// The \\2 is an example of backreferencing. This tells pcre that
// it must match the second set of parentheses in the regular expression
// itself, which would be the ([\w]+) in this case. The extra backslash is
// required because the string is in double quotes.
String html = "<b>bold text</b><a href=howdy.html>click me</a>";
f_preg_match_all("/(<([\\w]+)[^>]*>)(.*)(<\\/\\2>)/", html, ref(matches),
k_PREG_SET_ORDER);
VS(f_print_r(matches, true),
"Array\n"
"(\n"
" [0] => Array\n"
" (\n"
" [0] => <b>bold text</b>\n"
" [1] => <b>\n"
" [2] => b\n"
" [3] => bold text\n"
" [4] => </b>\n"
" )\n"
"\n"
" [1] => Array\n"
" (\n"
" [0] => <a href=howdy.html>click me</a>\n"
" [1] => <a href=howdy.html>\n"
" [2] => a\n"
" [3] => click me\n"
" [4] => </a>\n"
" )\n"
"\n"
")\n");
String str = "a: 1\nb: 2\nc: 3\n";
f_preg_match_all("/(?<name>\\w+): (?<digit>\\d+)/", str, ref(matches));
VS(f_print_r(matches, true),
"Array\n"
"(\n"
" [0] => Array\n"
" (\n"
" [0] => a: 1\n"
" [1] => b: 2\n"
" [2] => c: 3\n"
" )\n"
"\n"
" [name] => Array\n"
" (\n"
" [0] => a\n"
" [1] => b\n"
" [2] => c\n"
" )\n"
"\n"
" [1] => Array\n"
" (\n"
" [0] => a\n"
" [1] => b\n"
" [2] => c\n"
" )\n"
"\n"
" [digit] => Array\n"
" (\n"
" [0] => 1\n"
" [1] => 2\n"
" [2] => 3\n"
" )\n"
"\n"
" [2] => Array\n"
" (\n"
" [0] => 1\n"
" [1] => 2\n"
" [2] => 3\n"
" )\n"
"\n"
")\n");
return Count(true);
}
