3v4l.org

run code in 300+ PHP versions simultaneously
namecreated# operations% variancefunction calls
XPrbP1130serialize, var_export
GibVI1840serialize, unserialize, var_dump, var_export
QcjMb400substr, hexdec, hash
0Htha400substr, hexdec, hash
oL1qf400substr, hexdec, hash
R4qeb80array_keys, print_r
cO8E960array_keys
2om83400substr, hexdec, hash
JYZsb400substr, hexdec, hash
5CUBU210
dp5dT40
HN5vD40
SgM5580
XXddr80
Au2kq70
mRj9q80array_flip
UqPTB80array_flip
Ipfhm70
LlpDl70array_flip
dksfb70array_flip
4BO4W90print_r, array_flip
hXXjU70print_r, array_flip
NporM70print_r, array_flip
jhLmY40print_r
BuQhE?0

preferences:
24.09 ms | 474 KiB | 1 Q