[RESOLVED] strict standards error

[jmack159]

hey,

why does this line of code:

$dates = sort(explode("; ", $date, -1));

where $date is a string like "09/25/2007; 09/26/2007; 09/27/2007; "

throw this error:

Strict Standards: Only variables should be passed by reference in C:\Program Files\.....

thanks

[jrolands]

I tried running it and it worked perfectly, although in this case the variable $dates will be set to true or false instead of an array containing the sorted dates since the sort() function return either true or false.
instead try this

$dates = explode("; ", $date, -1);
sort($dates);

also check your php verson since support for negative limits in the explode() function was not introduced until v5.1.0

[NogDog]

The template for the [man]sort/man function is:

The On-Line PHP Manual wrote:

bool sort ( array &$array [, int $sort_flags] )

It does not return an array. Rather, the array in question is passed by reference as the first argument (the "&" in the template), so that the sorting is directly implemented on that array. Therefore, in order to end up with a sorted array you will need to do what jrolands suggested, assigning the results of explode to a variable, then sort()-ing that array variable as a separate command.

[jmack159]

ohh.... i guess i didn't look closely enough at the function defiition for sort() :o

thanks guys!
mark this one as resolved