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<HTML
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><TT
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>function</TT
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><P
> A function may be defined using syntax such as the following:
<DIV
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><P
></P
><PRE
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> function foo ($arg_1, $arg_2, ..., $arg_n) {
echo "Example function.\n";
return $retval;
}
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</P
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> Any valid PHP code may appear inside a function, even other
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definitions.
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> Functions must be defined before they are referenced.
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