3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(); for($i = 0 ; $i<=1000; $i++){ $array[$i] = $i; } function walk($a, $index = 0){ if (count($a) == $index + 1) { echo($a[$index].'-'); } else { walk($a, $index + 1); echo($a[$index].'-'); } } walk($array);
Output for git.master, git.master_jit, rfc.property-hooks
1000-999-998-997-996-995-994-993-992-991-990-989-988-987-986-985-984-983-982-981-980-979-978-977-976-975-974-973-972-971-970-969-968-967-966-965-964-963-962-961-960-959-958-957-956-955-954-953-952-951-950-949-948-947-946-945-944-943-942-941-940-939-938-937-936-935-934-933-932-931-930-929-928-927-926-925-924-923-922-921-920-919-918-917-916-915-914-913-912-911-910-909-908-907-906-905-904-903-902-901-900-899-898-897-896-895-894-893-892-891-890-889-888-887-886-885-884-883-882-881-880-879-878-877-876-875-874-873-872-871-870-869-868-867-866-865-864-863-862-861-860-859-858-857-856-855-854-853-852-851-850-849-848-847-846-845-844-843-842-841-840-839-838-837-836-835-834-833-832-831-830-829-828-827-826-825-824-823-822-821-820-819-818-817-816-815-814-813-812-811-810-809-808-807-806-805-804-803-802-801-800-799-798-797-796-795-794-793-792-791-790-789-788-787-786-785-784-783-782-781-780-779-778-777-776-775-774-773-772-771-770-769-768-767-766-765-764-763-762-761-760-759-758-757-756-755-754-753-752-751-750-749-748-747-746-745-744-743-742-741-740-739-738-737-736-735-734-733-732-731-730-729-728-727-726-725-724-723-722-721-720-719-718-717-716-715-714-713-712-711-710-709-708-707-706-705-704-703-702-701-700-699-698-697-696-695-694-693-692-691-690-689-688-687-686-685-684-683-682-681-680-679-678-677-676-675-674-673-672-671-670-669-668-667-666-665-664-663-662-661-660-659-658-657-656-655-654-653-652-651-650-649-648-647-646-645-644-643-642-641-640-639-638-637-636-635-634-633-632-631-630-629-628-627-626-625-624-623-622-621-620-619-618-617-616-615-614-613-612-611-610-609-608-607-606-605-604-603-602-601-600-599-598-597-596-595-594-593-592-591-590-589-588-587-586-585-584-583-582-581-580-579-578-577-576-575-574-573-572-571-570-569-568-567-566-565-564-563-562-561-560-559-558-557-556-555-554-553-552-551-550-549-548-547-546-545-544-543-542-541-540-539-538-537-536-535-534-533-532-531-530-529-528-527-526-525-524-523-522-521-520-519-518-517-516-515-514-513-512-511-510-509-508-507-506-505-504-503-502-501-500-499-498-497-496-495-494-493-492-491-490-489-488-487-486-485-484-483-482-481-480-479-478-477-476-475-474-473-472-471-470-469-468-467-466-465-464-463-462-461-460-459-458-457-456-455-454-453-452-451-450-449-448-447-446-445-444-443-442-441-440-439-438-437-436-435-434-433-432-431-430-429-428-427-426-425-424-423-422-421-420-419-418-417-416-415-414-413-412-411-410-409-408-407-406-405-404-403-402-401-400-399-398-397-396-395-394-393-392-391-390-389-388-387-386-385-384-383-382-381-380-379-378-377-376-375-374-373-372-371-370-369-368-367-366-365-364-363-362-361-360-359-358-357-356-355-354-353-352-351-350-349-348-347-346-345-344-343-342-341-340-339-338-337-336-335-334-333-332-331-330-329-328-327-326-325-324-323-322-321-320-319-318-317-316-315-314-313-312-311-310-309-308-307-306-305-304-303-302-301-300-299-298-297-296-295-294-293-292-291-290-289-288-287-286-285-284-283-282-281-280-279-278-277-276-275-274-273-272-271-270-269-268-267-266-265-264-263-262-261-260-259-258-257-256-255-254-253-252-251-250-249-248-247-246-245-244-243-242-241-240-239-238-237-236-235-234-233-232-231-230-229-228-227-226-225-224-223-222-221-220-219-218-217-216-215-214-213-212-211-210-209-208-207-206-205-204-203-202-201-200-199-198-197-196-195-194-193-192-191-190-189-188-187-186-185-184-183-182-181-180-179-178-177-176-175-174-173-172-171-170-169-168-167-166-165-164-163-162-161-160-159-158-157-156-155-154-153-152-151-150-149-148-147-146-145-144-143-142-141-140-139-138-137-136-135-134-133-132-131-130-129-128-127-126-125-124-123-122-121-120-119-118-117-116-115-114-113-112-111-110-109-108-107-106-105-104-103-102-101-100-99-98-97-96-95-94-93-92-91-90-89-88-87-86-85-84-83-82-81-80-79-78-77-76-75-74-73-72-71-70-69-68-67-66-65-64-63-62-61-60-59-58-57-56-55-54-53-52-51-50-49-48-47-46-45-44-43-42-41-40-39-38-37-36-35-34-33-32-31-30-29-28-27-26-25-24-23-22-21-20-19-18-17-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-1-0-

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