array_key_exists
array_keys
array_map
array_merge
array_pop
array_shift
array_unshift
array_values
array_walk
basename
class_exists
compact
count
date
declare
defined
dirname
echo
end
explode
file_exists
file_get_contents
function_exists
get_class
implode
in_array
intval
is_array
is_bool
is_dir
is_file
is_int
is_null
is_numeric
is_object
is_string
json_encode
max
mb_strlen
mb_strpos
mb_strtolower
min
preg_match
preg_replace
print_r
realpath
reset
rtrim
sprintf
str_repeat
str_replace
str_starts_with
substr
time
trim
uniqid
unlink
var_dump
<?php
if
else
elseif
switch
case
match
for
foreach
while
do
break
continue
return
=>
->