Type checking

These operators generally correspond to the PHP functions of the same name, where they exist.

is_array

Returns true if the input or the first parameter is an array. If both input and parameter are supplied, the parameter will be used.

is_boolean

Returns true if the input or the first parameter is a boolean (true or false). If both input and parameter are supplied, the parameter will be used.

is_integer

Returns true if the input or the first parameter is an integer. If both input and parameter are supplied, the parameter will be used.

is_float

Returns true if the input or the first parameter is a floating point number. If both input and parameter are supplied, the parameter will be used.

is_numeric

Returns true if the input or the first parameter is a number or a numberic string (a string consisting of numbers). If both input and parameter are supplied, the parameter will be used.

is_string

Returns true if the input or the first parameter is a string. If both input and parameter are supplied, the parameter will be used.

is_object

Returns true if the input or the first parameter is an object (as opposed to a simple type like integer or float). If both input and parameter are supplied, the parameter will be used.

is_class

Returns true if the input or the first parameter is a class. If both input and parameter are supplied, the parameter will be used.

is_null

Returns true if the input or the first parameter is null.
Note: The integer 0 is not the same as 'null', if you want to test for 0 use

{$var|eq(0)}

or
{eq($var,0)}
instead. If both input and parameter are supplied, the parameter will be used.

is_set

Returns true if the first parameter is not false. is_set does not take an input.

is_unset

Returns true if the first parameter is false. is_unset does not take an input.

get_type

Returns the type of the input or the first parameter as a string. If both input and parameter are supplied,
the parameter will be used. If the data is an object, then the string 'object' and the classname will be returned.
If the data is an array, then the string 'array' and the array count will be returned. If the data is a string, then the string 'string' and the string length will be returned.

get_class

Returns the class of the input or the first parameter as a string. If both input and parameter are supplied, the parameter will be used.
If the data is not an object, false will be returned.

Type creators

true

Creates a true boolean. Remember to use brackets, e.g.

{true()}

false

Creates a false boolean. Remember to use brackets, e.g.

{false()}

array

Creates an array. E.g.

array(6,8,42)

hash

Creates an associative array. E.g.

hash(name,'Ola Norman',age,26)

 

 

Some types can only be created from the PHP side or with the use of operators. Arrays are created with the array or the hash operator and booleans with the true and false operators.

{* Creating array with numerics *}

{array(1,2,5)}

 

{* Creating array with strings *}

{array('red','green','blue')}

 

{* Creating associative array *}

{hash(name,'Ola Norman',age,26)}

 

{* Creating booleans *}

{true()}

{false()}

 

{* Creating array with booleans *}

{array(true(),false(),true())}