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|[http://www.php.net/manual/en/function.htmlentities.php htmlentities]||Converteert naar HTML (altijd ENT_QUOTES en UTF-8)||string htmlentities(string)
|[http://www.php.net/manual/en/function.htmlentities.php htmlentities]||Converteert naar HTML (altijd ENT_QUOTES en UTF-8)||string htmlentities(string)
|-
|-
|[http://www.php.net/manual/en/function.htmlspecialchars.php expr_mgr_htmlspecialchars]||Convert special characters to HTML entities (always uses ENT_QUOTES and UTF-8)||string htmlspecialchars(string)
|[http://www.php.net/manual/en/function.htmlspecialchars.php expr_mgr_htmlspecialchars]||Converteert speciale tekens naar HTML (altijd ENT_QUOTES en UTF-8)||string htmlspecialchars(string)
|-
|-
|[http://www.php.net/manual/en/function.htmlspecialchars-decode.php expr_mgr_htmlspecialchars_decode]||Convert special HTML entities back to characters (always uses ENT_QUOTES and UTF-8)||string htmlspecialchars_decode(string)
|[http://www.php.net/manual/en/function.htmlspecialchars-decode.php expr_mgr_htmlspecialchars_decode]||Converteert speciale HTML naar tekens terug (altijd ENT_QUOTES en UTF-8)||string htmlspecialchars_decode(string)
|-
|-
|[http://www.php.net/manual/en/function.idate.php idate]||Format a local time/date as integer||string idate(string <nowiki>[</nowiki>, timestamp=time()])
|[http://www.php.net/manual/en/function.idate.php idate]||Maakt een datum/tijd aan als integer||string idate(string <nowiki>[</nowiki>, timestamp=time()])
|-
|-
|if||Excel-style if(test,result_if_true,result_if_false)||if(test,result_if_true,result_if_false)
|if||Excel-style if(test,result_if_true,result_if_false)||if(test,result_if_true,result_if_false)
|-
|-
|[http://www.php.net/manual/en/function.implode.php implode]||Join array elements with a string||string implode(glue,arg1,arg2,...,argN)
|[http://www.php.net/manual/en/function.implode.php implode]||Array omzetten naar string||string implode(glue,arg1,arg2,...,argN)
|-
|-
|[http://www.php.net/manual/en/function.intval.php intval]||Get the integer value of a variable||int intval(number <nowiki>[</nowiki>, base=10])
|[http://www.php.net/manual/en/function.intval.php intval]||Bepaal integer waarde van een variabele||int intval(number <nowiki>[</nowiki>, base=10])
|-
|-
|[http://www.php.net/manual/en/function.empty.php is_empty]||Determine whether a variable is considered to be empty||bool is_empty(var)
|[http://www.php.net/manual/en/function.empty.php is_empty]||Bepaalt of een variabele leeg is ||boolean is_empty(var)
|-
|-
|[http://www.php.net/manual/en/function.is-float.php is_float]||Finds whether the type of a variable is float||bool is_float(var)
|[http://www.php.net/manual/en/function.is-float.php is_float]||Finds whether the type of a variable is float||bool is_float(var)

Revision as of 20:06, 30 July 2013

Message definition (Expression Manager)
{| class="wikitable"
!Function!!Meaning!!Syntax
|-
|[http://www.php.net/manual/en/function.abs.php abs]||Absolute value||number abs(number)
|-
|[http://www.php.net/manual/en/function.acos.php acos]||Arc cosine||number acos(number)
|-
|[http://www.php.net/manual/en/function.addslashes.php addslashes]||Quote string with slashes||string addslashes(string)
|-
|[http://www.php.net/manual/en/function.asin.php asin]||Arc sine||number asin(number)
|-
|[http://www.php.net/manual/en/function.atan.php atan]||Arc tangent||number atan(number)
|-
|[http://www.php.net/manual/en/function.atan2.php atan2]||Arc tangent of two variables||number atan2(number, number)
|-
|[http://www.php.net/manual/en/function.ceil.php ceil]||Round fractions up||number ceil(number)
|-
|[http://www.php.net/manual/en/function.checkdate.php checkdate]||Returns true(1) if it is a valid date in gregorian calendar||bool checkdate(month,day,year)
|-
|convert_value||Convert a numerical value using a inputTable and outputTable of numerical values||number convert_value(fValue, iStrict, sTranslateFromList, sTranslateToList)
|-
|[http://www.php.net/manual/en/function.cos.php cos]||Cosine||number cos(number)
|-
|count||count the number of answered (non-blank) questions in the list||number count(arg1, arg12, ..., argN)
|-
|countif||Count the number of answered questions in the list equal to the first argument||number countif(matches, arg1, arg2, ... argN)
|-
|countifop||Count the number of answered questions in the list which pass the criteria (arg op value)||number countifop(op, value, arg1, arg2, ... argN)
|-
|[http://www.php.net/manual/en/function.date.php date]||Format a local date/time||string date(format <nowiki>[</nowiki>, timestamp=time()])
|-
|[http://www.php.net/manual/en/function.exp.php exp]||Calculates the exponent of e||number exp(number)
|-
|fixnum||Display numbers with comma as radix separator, if needed||string fixnum(number)
|-
|[http://www.php.net/manual/en/function.floor.php floor]||Round fractions down||number floor(number)
|-
|[http://www.php.net/manual/en/function.gmdate.php gmdate]||Format a GMT date/time||string gmdate(format <nowiki>[</nowiki>, timestamp=time()])
|-
|[http://www.php.net/manual/en/function.html-entity-decode.php html_entity_decode]||Convert all HTML entities to their applicable characters (always uses ENT_QUOTES and UTF-8)||string html_entity_decode(string)
|-
|[http://www.php.net/manual/en/function.htmlentities.php htmlentities]||Convert all applicable characters to HTML entities (always uses ENT_QUOTES and UTF-8)||string htmlentities(string)
|-
|[http://www.php.net/manual/en/function.htmlspecialchars.php expr_mgr_htmlspecialchars]||Convert special characters to HTML entities (always uses ENT_QUOTES and UTF-8)||string htmlspecialchars(string)
|-
|[http://www.php.net/manual/en/function.htmlspecialchars-decode.php expr_mgr_htmlspecialchars_decode]||Convert special HTML entities back to characters (always uses ENT_QUOTES and UTF-8)||string htmlspecialchars_decode(string)
|-
|[http://www.php.net/manual/en/function.idate.php idate]||Format a local time/date as integer||string idate(string <nowiki>[</nowiki>, timestamp=time()])
|-
|if{{UpdatedIn|3.0.2}}||Excel-style if(test,result_if_true<nowiki>[</nowiki>,result_if_false = &quot;&quot;<nowiki>]</nowiki>)||if(test,result_if_true<nowiki>[</nowiki>,result_if_false = &quot;&quot;<nowiki>]</nowiki>)
|-
|[http://www.php.net/manual/en/function.implode.php implode]||Join array elements with a string||string implode(glue,arg1,arg2,...,argN)
|-
|[http://www.php.net/manual/en/function.intval.php intval]||Get the integer value of a variable||int intval(number <nowiki>[</nowiki>, base=10])
|-
|[http://www.php.net/manual/en/function.empty.php is_empty]||Determine whether a variable is considered to be empty||bool is_empty(var)
|-
|[http://www.php.net/manual/en/function.is-float.php is_float]||Finds whether the type of a variable is float||bool is_float(var)
|-
|[http://www.php.net/manual/en/function.is-int.php is_int]||Find whether the type of a variable is integer||bool is_int(var)
|-
|[http://www.php.net/manual/en/function.is-nan.php is_nan]||Finds whether a value is not a number||bool is_nan(var)
|-
|[http://www.php.net/manual/en/function.is-null.php is_null]||Finds whether a variable is NULL||bool is_null(var)
|-
|[http://www.php.net/manual/en/function.is-numeric.php is_numeric]||Finds whether a variable is a number or a numeric string||bool is_numeric(var)
|-
|[http://www.php.net/manual/en/function.is-string.php is_string]||Find whether the type of a variable is string||bool is_string(var)
|-
|join{{NewIn|2.0|b=130129}}||Join elements as a new string||join(arg1, arg2, ... argN)
|-
|list||Return comma-separated list of non-blank values||string list(arg1, arg2, ... argN)
|-
|listifop{{NewIn|3.16.1}}||Return a 'glue'-separated list of the specified question property (retProp) from questions in the list which pass the criteria (cmpProp op value)||string listifop(cmpProp, op, value, retProp, glue, sgqa1, sgqa2, ... sgqaN)
|-
|[http://www.php.net/manual/en/function.log.php log]|| The logarithm of number to base, if given, or the natural logarithm. ||number log(number,base=e)
|-
|[http://www.php.net/manual/en/function.ltrim.php ltrim]||Strip whitespace (or other characters) from the beginning of a string||string ltrim(string <nowiki>[</nowiki>, charlist])
|-
|[http://www.php.net/manual/en/function.max.php max]||Find highest value||number max(arg1, arg2, ... argN)
|-
|[http://www.php.net/manual/en/function.min.php min]||Find lowest value||number min(arg1, arg2, ... argN)
|-
|[http://www.php.net/manual/en/function.mktime.php mktime]||Get UNIX timestamp for a date (each of the 6 arguments are optional)||number mktime([hour [, minute [, second [, month [, day [, year ]]]]]])
|-
|modulo-function||The modulo function is '''not supported''' yet. You can use the floor() function instead||floor(x/y)==(x/y)
|-
|[http://www.php.net/manual/en/function.nl2br.php nl2br]||Inserts HTML line breaks before all newlines in a string||string nl2br(string)
|-
|[http://www.php.net/manual/en/function.number-format.php number_format]||Format a number with grouped thousands||string number_format(number)
|-
|pi||Get value of pi||number pi()
|-
|[http://www.php.net/manual/en/function.pow.php pow]||Exponential expression||number pow(base, exp)
|-
|[http://www.php.net/manual/en/function.quoted-printable-decode.php quoted_printable_decode]||Convert a quoted-printable string to an 8 bit string||string quoted_printable_decode(string)
|-
|[http://www.php.net/manual/en/function.quoted-printable-encode.php quoted_printable_encode]||Convert a 8 bit string to a quoted-printable string||string quoted_printable_encode(string)
|-
|[http://www.php.net/manual/en/function.quotemeta.php quotemeta]||Quote meta characters||string quotemeta(string)
|-
|[http://www.php.net/manual/en/function.rand.php rand]||Generate a random integer, see [[Expression Manager sample surveys#Randomly Ask One Question Per Group|this example]]||int rand() OR int rand(min, max)
|-
|regexMatch||compare a string to a [[Using regular expressions|regular expression]]||bool regexMatch(pattern,input)
|-
|[http://www.php.net/manual/en/function.round.php round]||Rounds a number to an optional precision||number round(val <nowiki>[</nowiki>, precision])
|-
|[http://www.php.net/manual/en/function.rtrim.php rtrim]||Strip whitespace (or other characters) from the end of a string||string rtrim(string <nowiki>[</nowiki>, charlist])
|-
|[http://www.php.net/manual/en/function.sin.php sin]||Sine||number sin(arg)
|-
|[http://www.php.net/manual/en/function.sprintf.php sprintf]||Return a formatted string||string sprintf(format, arg1, arg2, ... argN)
|-
|[http://www.php.net/manual/en/function.sqrt.php sqrt]||Square root||number sqrt(arg)
|-
|stddev||Calculate the Sample Standard Deviation for the list of numbers||number stddev(arg1, arg2, ... argN)
|-
|[http://www.php.net/manual/en/function.str-pad.php str_pad]||Pad a string to a certain length with another string||string str_pad(input, pad_length <nowiki>[</nowiki>, pad_string])
|-
|[http://www.php.net/manual/en/function.str-repeat.php str_repeat]||Repeat a string||string str_repeat(input, multiplier)
|-
|[http://www.php.net/manual/en/function.str-replace.php str_replace]||Replace all occurrences of the search string with the replacement string||string str_replace(search, replace, subject)
|-
|[http://www.php.net/manual/en/function.strcasecmp.php strcasecmp]||Binary safe case-insensitive string comparison||int strcasecmp(str1, str2)
|-
|[http://www.php.net/manual/en/function.strcmp.php strcmp]||Binary safe string comparison||int strcmp(str1, str2)
|-
|[http://www.php.net/manual/en/function.strip-tags.php strip_tags]||Strip HTML and PHP tags from a string||string strip_tags(str, allowable_tags)
|-
|[http://www.php.net/manual/en/function.stripos.php stripos]||Find position of first occurrence of a case-insensitive unicode string (starting by 0, return false if not found)|||int stripos(haystack, needle <nowiki>[</nowiki>, offset=0])
|-
|[http://www.php.net/manual/en/function.stripslashes.php stripslashes]||Un-quotes a quoted string||string stripslashes(string)
|-
|[http://www.php.net/manual/en/function.stristr.php stristr]||Case-insensitive strstr||string stristr(haystack, needle <nowiki>[</nowiki>, before_needle=false])
|-
|[http://www.php.net/manual/en/function.strlen.php strlen]||Get string length||int strlen(string)
|-
|[http://www.php.net/manual/en/function.strpos.php strpos]||Find position of first occurrence of an unicode string (starting by 0, return false if not found)||int strpos(haystack, needle <nowiki>[</nowiki> offset=0])
|-
|[http://www.php.net/manual/en/function.strrev.php strrev]||Reverse a string||string strrev(string)
|-
|[http://www.php.net/manual/en/function.strstr.php strstr]||Find first occurrence of a string||string strstr(haystack, needle<nowiki>[</nowiki>, before_needle=false])
|-
|[http://www.php.net/manual/en/function.strtolower.php strtolower]||Make a string lowercase||string strtolower(string)
|-
|[http://www.php.net/manual/en/function.strtotime.php strtotime]||Parse about any English textual datetime description into a Unix timestamp||int strtotime(string)
|-
|[http://www.php.net/manual/en/function.strtoupper.php strtoupper]||Make a string uppercase||string strtoupper(string)
|-
|[http://www.php.net/manual/en/function.substr.php substr]||Return part of an unicode string||string substr(string, start <nowiki>[</nowiki>, length])
|-
|sum||Calculate the sum of values in an array||number sum(arg1, arg2, ... argN)
|-
|sumifop||Sum the values of answered questions in the list which pass the criteria (arg op value)||number sumifop(op, value, arg1, arg2, ... argN)
|-
|[http://www.php.net/manual/en/function.tan.php tan]||Tangent||number tan(arg)
|-
|[http://www.php.net/manual/en/function.time.php time]||Return current UNIX timestamp||number time()
|-
|[http://www.php.net/manual/en/function.trim.php trim]||Strip whitespace (or other characters) from the beginning and end of a string||string trim(string <nowiki>[</nowiki>, charlist])
|-
|[http://www.php.net/manual/en/function.ucwords.php ucwords]||Uppercase the first character of each word in a string||string ucwords(string)
|-
|unique||Returns true if all non-empty responses are unique||boolean unique(arg1, ..., argN)
|}
Functie Betekenis Syntax
abs Absolute waarde getal abs(getal)
acos Arc cosinus getal acos(getal)
addslashes Backslashes toevoegen string addslashes(string)
asin Arc sinus getal asin(getal)
atan Arc tangens getal atan(getal)
atan2 Arc tangens van 2 variabelen getal atan2(getal, getal)
ceil Afronden naar boven getal ceil(getal)
checkdate Resultaat true (1) als het een geldige datum is in gregoriaanse kalender boolean checkdate(maand,dag,jaar)
convert_value Omzetten numerieke waarde met invoertabel en uitvoertabel met numerieke waarden getal convert_value(fWaarde, iStrict, invoertabel, uitvoertabel)
cos Cosinus getal cos(getal)
count tel aantal beantwoorde vragen in de lijst getal count(arg1, arg12, ..., argN)
countif Telt het aantal beantwoorde vragen in de lijst gelijk aan het eerste argument getal countif(matches, arg1, arg2, ... argN)
countifop Telt het aantal beantwoorde vragen in de lijst die aan de criteria voldoen (arg op waarde) getal countifop(op, waarde, arg1, arg2, ... argN)
date Maak een datum/tijd string date(format [, timestamp=time()])
exp Berekent de e exponent getal exp(getal)
fixnum Toont getallen met komma als decimaalteken indien nodig string fixnum(getal)
floor Afkappen getal floor(getal)
gmdate Maakt een GMT datum/tijd string gmdate(format [, timestamp=time()])
html_entity_decode Converteert HTML (altijd met ENT_QUOTES en UTF-8) string html_entity_decode(string)
htmlentities Converteert naar HTML (altijd ENT_QUOTES en UTF-8) string htmlentities(string)
expr_mgr_htmlspecialchars Converteert speciale tekens naar HTML (altijd ENT_QUOTES en UTF-8) string htmlspecialchars(string)
expr_mgr_htmlspecialchars_decode Converteert speciale HTML naar tekens terug (altijd ENT_QUOTES en UTF-8) string htmlspecialchars_decode(string)
idate Maakt een datum/tijd aan als integer string idate(string [, timestamp=time()])
if Excel-style if(test,result_if_true,result_if_false) if(test,result_if_true,result_if_false)
implode Array omzetten naar string string implode(glue,arg1,arg2,...,argN)
intval Bepaal integer waarde van een variabele int intval(number [, base=10])
is_empty Bepaalt of een variabele leeg is boolean is_empty(var)
is_float Finds whether the type of a variable is float bool is_float(var)
is_int Find whether the type of a variable is integer bool is_int(var)
is_nan Finds whether a value is not a number bool is_nan(var)
is_null Finds whether a variable is NULL bool is_null(var)
is_numeric Finds whether a variable is a number or a numeric string bool is_numeric(var)
is_string Find whether the type of a variable is string bool is_string(var)
join (New in 2.0 build 130129) Join elements as a new string join(arg1, arg2, ... argN)
list Return comma-separated list of non-blank values string list(arg1, arg2, ... argN)
log The logarithm of number to base, if given, or the natural logarithm. number log(number,base=e)
ltrim Strip whitespace (or other characters) from the beginning of a string string ltrim(string [, charlist])
max Find highest value number max(arg1, arg2, ... argN)
min Find lowest value number min(arg1, arg2, ... argN)
mktime Get UNIX timestamp for a date (each of the 6 arguments are optional) number mktime([hour [, minute [, second [, month [, day [, year ]]]]]])
modulo-function The modulo function is not supported yet. You can use the floor() function instead floor(x/y)==(x/y)
nl2br Inserts HTML line breaks before all newlines in a string string nl2br(string)
number_format Format a number with grouped thousands string number_format(number)
pi Get value of pi number pi()
pow Exponential expression number pow(base, exp)
quoted_printable_decode Convert a quoted-printable string to an 8 bit string string quoted_printable_decode(string)
quoted_printable_encode Convert a 8 bit string to a quoted-printable string string quoted_printable_encode(string)
quotemeta Quote meta characters string quotemeta(string)
rand Generate a random integer, see this example int rand() OR int rand(min, max)
regexMatch compare a string to a regular expression bool regexMatch(pattern,input)
round Rounds a number to an optional precision number round(val [, precision])
rtrim Strip whitespace (or other characters) from the end of a string string rtrim(string [, charlist])
sin Sine number sin(arg)
sprintf Return a formatted string string sprintf(format, arg1, arg2, ... argN)
sqrt Square root number sqrt(arg)
stddev Calculate the Sample Standard Deviation for the list of numbers number stddev(arg1, arg2, ... argN)
str_pad Pad a string to a certain length with another string string str_pad(input, pad_length [, pad_string])
str_repeat Repeat a string string str_repeat(input, multiplier)
str_replace Replace all occurrences of the search string with the replacement string string str_replace(search, replace, subject)
strcasecmp Binary safe case-insensitive string comparison int strcasecmp(str1, str2)
strcmp Binary safe string comparison int strcmp(str1, str2)
strip_tags Strip HTML and PHP tags from a string string strip_tags(str, allowable_tags)
stripos Find position of first occurrence of a case-insensitive string int stripos(haystack, needle [, offset=0])
stripslashes Un-quotes a quoted string string stripslashes(string)
stristr Case-insensitive strstr string stristr(haystack, needle [, before_needle=false])
strlen Get string length int strlen(string)
strpos Find position of first occurrence of a string int strpos(haystack, needle [ offset=0])
strrev Reverse a string string strrev(string)
strstr Find first occurrence of a string string strstr(haystack, needle)
strtolower Make a string lowercase string strtolower(string)
strtotime Parse about any English textual datetime description into a Unix timestamp int strtotime(string)
strtoupper Make a string uppercase string strtoupper(string)
substr Return part of a string string substr(string, start [, length])
sum Calculate the sum of values in an array number sum(arg1, arg2, ... argN)
sumifop Sum the values of answered questions in the list which pass the criteria (arg op value) number sumifop(op, value, arg1, arg2, ... argN)
tan Tangent number tan(arg)
time Return current UNIX timestamp number time()
trim Strip whitespace (or other characters) from the beginning and end of a string string trim(string [, charlist])
ucwords Uppercase the first character of each word in a string string ucwords(string)
unique Returns true if all non-empty responses are unique boolean unique(arg1, ..., argN)
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