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[nycphp-talk] Accessing non-existent array elements ok?

Daniel Convissor danielc at analysisandsolutions.com
Mon Aug 18 23:30:13 EDT 2008


Hey Michael:

On Sun, Aug 17, 2008 at 04:49:02PM -0400, Michael B Allen wrote:
> 
> Is it ok to access non-existent array elements?

It depends on how you define okay. :)  You can do it.  It will work 
reliably, but it produces notices (if you have errors displayed or 
logged).  So, it's a bad practice.


> Will accessing an array element using a key that does not exist always
> return NULL?

Yes.  That's the case with accessing any non-existant variable in PHP.

Enjoy,

--Dan

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