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@NogDogAug 22.2005 — #Essentially that parameter becomes optional when calling the function, as long as there are no parameters following it which do not have default values. PHP will generate a warning/error if you try to call a function without supplying arguments for all non-defaulted parameters.
Default parameter value?
Hi, would like to ask some elementary question.
What is the purpose of having ‘$param = value’ in the following snippet, over simply ‘$param’? Does it mean that if $param is missing when the function is called, it is given the default value of value?
[code=php]
function myfun($param = value) {
…
}
TIA
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@NogDogAug 22.2005 — #Essentially that parameter becomes optional when calling the function, as long as there are no parameters following it which do not have default values. PHP will generate a warning/error if you try to call a function without supplying arguments for all non-defaulted parameters.[code=php]
function foobar($var1, $var2, $var3 = "default value", $var4 = "")
{
# function definition...
}
# any of these calls would be legal and not generate a warning/error:
foobar("a", "b"); # var3 and var4 would use default values
foobar("a", "b", "c"); # var4 would use default value
foobar("a", "b", "c", "d");
[/code]