PHP Function List

Sorry, but the function is_prime is not in the online manual. Perhaps you misspelled it, or it is a relatively new function that hasn't made it into the online documentation yet. The following are the 20 functions which seem to be closest in spelling to is_prime (really good matches are in bold). Perhaps you were looking for one of these:

is_real
is_file
is_writable
strftime
strptime
is_writeable
is_string

is_finite
dio_write
swfsprite
microtime
strtotime
oci_parse
swish_prepare

swf_polarview
ps_open_image
is_dir
is_int
gmp_nextprime
ibase_prepare

If you want to search the entire PHP website for the string "is_prime", then click here.

For a quick overview over all documented PHP functions, click here.