Caution: This documentation is for eZ Publish legacy, from version 3.x to 6.x.
For 5.x documentation covering Platform see eZ Documentation Center, for difference between legacy and Platform see 5.x Architecture overview.

def

Summary

Declares (and defines) a variable. Warns if the variable already exists.

Usage

{def $var1=value1 [ $var2=value2 [...] ]}

Parameters

NameTypeDescriptionRequired
$var1 string Name of variable number one (with a dollar sign in front of it). Yes.
value1 any The value that should be assigned to variable one. Yes.
$var2 string Name of variable number two (with a dollar sign in front of it). No.
value2 any The value that should be assigned to variable two. No.

Description

This function allows the declaration and definition of a single variable or a group of variables. The "undef" function can be used to flush/destroy variables that were created using the "def" function. Please note that this function does not support the "name" and the "scope" parameters (like the old {let} did).

Replacement for "default"

The following technique can be used as a replacement for the old "default" function:

{if is_set( $a )|not}
  {def $a=5}

Examples

Example 1

{def $oranges=13}

This example demonstrates how the "def" function can be used to declare a variable called "oranges". The variable will be declared as an integer with a value of 13.

Example 2

{def $oranges=13 $apples='There are no apples.'}

or

{def $oranges=13
     $apples='There are no apples.'}

These code snippets demonstrates how the "def" function can be used to declare multiple variables. A variable called "oranges" will be declared as an integer with a value of 13. A variable called "apples" will be declared as a string containing the following characters: "There are no apples.".

Balazs Halasy (28/02/2005 1:38 pm)

Balazs Halasy (03/10/2005 1:36 pm)


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