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PHP Object-Oriented PHP Basics Building a Collection Shopping List Method

Posted by Matt Nickolls
Matt Nickolls
9,895 Points

strpos/ strstr confusion

Hi

I am confused as to why the browser doesn't display:

Egg Eggs Eggs

and instead only displays:

Egg Eggs

after the:

if (strpos($item, ",")) { $item = strstr($item, ",", true); }

statement is implemented. surely there should still be two'Eggs' in the display because there was both an Eggs and 'Eggs, Beaten' in the original shopping list and $item = strstr($item, "," , true) should still return 'Eggs' ( with the ", Beaten" removed). So why is there only one 'Eggs'? What happened to the other one?

Hope someone can help.

emmagx
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emmagx
PHP Development Techdegree Graduate 18,239 Points
emmagx
.a{fill-rule:evenodd;}techdegree seal-36
emmagx
PHP Development Techdegree Graduate 18,239 Points

strpos — Find the position of the first occurrence of a substring in a string, in this case Eggs strstr - removes everything after the comma because of the value true. if (strpos($item, ",")) { $item = strstr($item, ",", true); } So there will only be one Eggs

3 Answers

emmagx
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.a{fill-rule:evenodd;}techdegree seal-36
emmagx
PHP Development Techdegree Graduate 18,239 Points
emmagx
.a{fill-rule:evenodd;}techdegree seal-36
emmagx
PHP Development Techdegree Graduate 18,239 Points

My understanding is that it brings back the first instance of eggs and then doesn’t repeat any duplicates. Since the word beater was removed that would make the second eggs a duplicate

Matt Nickolls
Matt Nickolls
9,895 Points
Matt Nickolls
Matt Nickolls
9,895 Points

Hi Emma thanks for the answer, but I'm still confused. Although strpos does return only 'Eggs' there was already another item called Eggs (and a third item called Egg). I understand why Egg has disappeared but not Eggs. If there are any ideas I would be very grateful!!.

Thanks again

Matt Nickolls
Matt Nickolls
9,895 Points
Matt Nickolls
Matt Nickolls
9,895 Points

Great thanks Emma that makes sense :)