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Chapter 12. Functions |
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The old_function statement allows you to declare a function using a syntax
identical to PHP/FI2 (except you must replace 'function' with 'old_function'.
This is a deprecated feature, and should only be used by the PHP/FI2->PHP 3
convertor.
| Warning |
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Functions declared as old_function cannot be called from PHP's internal code.
Among other things, this means you can't use them in functions such as usort(),
array_walk(), and
register_shutdown_function(). You can get around this limitation by writing a wrapper
function (in normal PHP 3 form) to call the old_function.
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