PHP :: Bug #5383 :: isset() can no longer be used to check if functions exist

Bug #5383	isset() can no longer be used to check if functions exist
Submitted:	2000-07-05 17:21 UTC	Modified:	2000-07-06 09:58 UTC
From:	ivo at ibuildings dot nl	Assigned:
Status:	Closed	Package:	Misbehaving function
PHP Version:	4.0.0	OS:	Linux (Red Hat 6.2)
Private report:	No	CVE-ID:	None

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[2000-07-05 17:21 UTC] ivo at ibuildings dot nl

This worked in PHP3:

if (isset($myobj->somefunction))
{ 
  $myobj->somefunction();
}

it no longer works in PHP4.

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[2000-07-05 19:15 UTC] stas at cvs dot php dot net

Please use function_exists instead

[2000-07-05 20:22 UTC] ivo at ibuildings dot nl

I tried like *everything* but I can't get function_exists() to work with classes.. only with regular functions.. or is there something special I should put in the function_exists parameter?

[2000-07-06 09:58 UTC] stas at cvs dot php dot net

Ah, classes. Then use:
bool method_exists(object object, string method)

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