preg_match_all()
Performs a global regular expression match, including terminal empty matches, optionally filling `$matches`, and returns the number of matches. AOT capture output supports local variables and local references; unsupported non-local destinations are diagnosed. Unsupported flag bits or conflicting order modes return 0 and clear a supplied capture destination on both backends.
preg_match_all()
function preg_match_all(string $pattern, string $subject, mixed $matches = [], int $flags = 0): intPerforms a global regular expression match, including terminal empty matches, optionally filling $matches, and returns the number of matches. AOT capture output supports local variables and local references; unsupported non-local destinations are diagnosed. Unsupported flag bits or conflicting order modes return 0 and clear a supplied capture destination on both backends.
Parameters:
$pattern(string)$subject(string)$matches(mixed), passed by reference, default[], optional$flags(int), default0, optional
Returns: int
Availability
- Compiled (AOT): supported by the Elephc code generator.
eval()(magician interpreter): supported through a declarative interpreter builtin (crates/elephc-magician/src/interpreter/builtins/regex/preg_match_all.rs).
No examples yet. Check examples/ and showcases/ for usage patterns.
Internals
For how preg_match_all is implemented in the compiler, see the internals page.