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} extracts a specified template's parameters and performs a variety of tasks to aid in its documentation or WP:TFD merge nominations. It itself takes two parameters: |1=, the output format; and |base=, the title of a template. The compare function requires a third parameter, |other=. {} must always be substituted. Its usage is demonstrated below.
Using a template is similar to calling a function in programming. When called, it returns a value. For a template, calling is known as a template call and the return value is known as the expansion of the template, which is treated as part of the calling page's source. Like functions, some templates can take parameters that affect their output.
The number of arguments that a function takes is called the arity of the function. A function that takes a single argument as input, such as () =, is called a unary function. A function of two or more variables is considered to have a domain consisting of ordered pairs or tuples of argument values. The argument of a circular function is an angle.
name – the name of the template (string, required). This should be exactly as it will appear in the invocation, e.g. for Template:Example use "Example". To generate the template name from a page name, you can use the name function. args – the arguments to use in the invocation (table, required). Table keys and values must be either strings ...
Copy a template section into a test-page edit-window, for debug. Copy a template section to the top of the template, for debug. Restructure a template so that each section is more separated. The basic strategy: isolate the code section to be debugged. Next, the testing, of each section of code, is crucial. There are some age-old adages to heed:
The Template namespace on Wikipedia is used to store templates, which contain Wiki markup intended for inclusion on multiple pages, usually via transclusion.Although the Template namespace is used for storing most templates, it is possible to transclude and substitute from other namespaces, [1] and so some template pages are placed in other namespaces, such as the User namespace.
This template is designed as a navigation aid to the most significant articles about PHP. It is not meant to have exhaustive lists (incomplete or complete) of PHP software, PHP people, all PHP articles, etc. However, feel free to add it to any PHP-related articles.
This module is for a very particular set of circumstances: when a substituted template needs to dynamically generate the wikimarkup for a template call, forwarding all numbered parameters. It also allows for the option of designating a prefix for a series of named parameters which will be converted to numbered ones.