RE: [PHP] workflow system design
[snip] Hi, i know it is not the right place, but, does anybody know a workflow system development process? or methodology? thanks! [/snip] Your question is pretty broad, there are several processes and methodologies available. What are you specifically looking to do? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] workflow system design
On Tue, Sep 7, 2010 at 8:39 AM, Jay Blanchard wrote: > [snip] > Hi, i know it is not the right place, but, does anybody know a workflow > system development process? or methodology? > thanks! > [/snip] http://en.wikipedia.org/wiki/Workflow -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] logical AND assignments
My ISP upgraded his server from Ubuntu 9.04 to Ubuntu 9.10, which probably included a newer PHP version. I don't know what PHP version was on previously. Code I've had running for years broke, and I tracked it down to this equivalent: "; $Condition0 = true and false; If ($Condition0) echo "Condition0"; else echo "Not Condition0"; $Condition1 = false and true; If ($Condition1) echo "Condition1"; else echo "Not Condition1"; $Condition2 = (true and false); If ($Condition2) echo "Condition2"; else echo "Not Condition2"; $Condition3 = true && false; If ($Condition3) echo "Condition3"; else echo "Not Condition3"; $Condition4 = (true && false); If ($Condition4) echo "Condition4"; else echo "Not Condition4"; ?> which returns: Current PHP version: 5.2.10-2ubuntu6.4 Condition0 Not Condition1 Not Condition2 Not Condition3 Not Condition4 === I added parentheses around the offending line of code and it seems okay now. But I am stymied as to why they're required at all. They never were before, and as far as I see there is no PHP requirement to include the parentheses. Have I done something silly? Mostly I'm worried if there are any other changes I need to make. I searched my code and hopefully found all similar instances, but who really knows about those kinds of things? Any comments? ---Robert -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] logical AND assignments
On Tue, Sep 07, 2010 at 10:41:46PM -0400, Robert E. Glaser wrote: > My ISP upgraded his server from Ubuntu 9.04 to Ubuntu 9.10, which > probably included a newer PHP version. I don't know what PHP version > was on previously. Code I've had running for years broke, and I tracked > it down to this equivalent: > > > echo 'Current PHP version: ', phpversion(), ""; > > $Condition0 = true and false; > If ($Condition0) > echo "Condition0"; > else echo "Not Condition0"; > > $Condition1 = false and true; > If ($Condition1) > echo "Condition1"; > else echo "Not Condition1"; > > $Condition2 = (true and false); > If ($Condition2) > echo "Condition2"; > else echo "Not Condition2"; > > $Condition3 = true && false; > If ($Condition3) > echo "Condition3"; > else echo "Not Condition3"; > > $Condition4 = (true && false); > If ($Condition4) > echo "Condition4"; > else echo "Not Condition4"; > ?> > > which returns: > > Current PHP version: 5.2.10-2ubuntu6.4 > > Condition0 > Not Condition1 > Not Condition2 > Not Condition3 > Not Condition4 > > === > > I added parentheses around the offending line of code and it seems okay > now. But I am stymied as to why they're required at all. They never > were before, and as far as I see there is no PHP requirement to include > the parentheses. Have I done something silly?Mostly I'm worried if > there are any other changes I need to make. I searched my code and > hopefully found all similar instances, but who really knows about those > kinds of things? > > Any comments? I can't tell what (if anything) changed or why. But the problem appears to rest with the fact that "&&" is higher precedence than "=", and "and" is lower precedence. Here are two references: http://us.php.net/manual/en/language.operators.logical.php http://us.php.net/manual/en/language.operators.precedence.php It's tricky, I'll admit. Since I normally mean for things I'm logically "anding" to be "anded" before any other operation, it's forced me to change almost all my "ands" to "&&". Just so I don't make a mistake. Also note the "associativity" in the second reference. Paul -- Paul M. Foster -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
