7.1 Appendix A Allowed PHP functions

These are the PHP functions that can be used in conditions, formulas and another expressions in the templates:

abs	acos	acosh
addcslashes	addslashes	asin
atan2	atanh	base_convert
bcadd	bccomp	bcdiv
bcmod	bcmul	bcpow
bcpowmod	bcscale	bcsqrt
bcsub	bin2hex	bindec
cal_days_in_month	cal_from_jd	cal_info
cal_to_jd	ceil	checkdate
chop	chr	chunk_split
convert_cyr_string	convert_uudecode	convert_uuencode
cos	cosh	count
count_chars	crc32	crypt
date	date_default_timezone_get	date_sunset
decbin	dechex	decoct
deg2rad	easter_date	easter_days
empty	exp	explode
expm1	floatval	floor
fmod	frenchtojd	getrandmax
gmdate	gmmktime	gmstrftime
gregoriantojd	hebrev	hebrevc
hex2bin	hexdec	html_entity_decode
htmlentities	htmlspecialchars	htmlspecialchars
htmlspecialchars_decode	htmlspecialchars_decode	hypot
idate	implode	intval
is_bool	is_double	is_finite
is_float	is_infinite	is_int
is_integer	is_long	is_nan
is_null	is_numeric	is_real
is_scalar	is_string	isset
jddayofweek	jdmonthname	jdtofrench
jdtogregorian	jdtojewish	jdtojulian
jdtounix	jewishtojd	jewishtojd
lcfirst	lcg_value	levenshtein
log	log10	log1p
ltrim	max	md5
metaphone	microtime	min
mktime	money_format	mt_getrandmax
mt_rand	mt_srand	nl2br
nl_langinfo	number_format	octdec
ord	pi	pow
quoted_printable_decode	quoted_printable_encode	quotemeta
rad2deg	rand	rand
round	rtrim	sha1
similar_text	sin	sinh
sizeof	soundex	sprintf
sprintf	sqrt	srand
str_ireplace	str_pad	str_repeat
str_replace	str_rot13	str_shuffle
strcasecmp	strchr	strcmp
strcoll	strcspn	strftime
strip_tags	stripcslashes	stripos
stripslashes	stristr	strlen
strnatcasecmp	strnatcmp	strncasecmp
strncmp	strpbrk	strpos
strptime	strrchr	strrev
strripos	strrpos	strspn
strtolower	strtotime	strtotime
strtoupper	strtr	strtr
strval	substr	substr_compare
substr_count	substr_replace	tan
tanh	time	timezone_name_from_abbr
timezone_version_get	trim	ucfirst
ucwords	uniqid	unixtojd
urldecode	urlencode	wordwrap