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Re: error message I don understand [message #174894 is a reply to message #174879]

Sat, 16 July 2011 19:28

Denis McMahon
Messages: 634
Registered: September 2010

Karma:

Senior Member

On Fri, 15 Jul 2011 14:38:28 +0000, liebling(dot)kreuzberg(at)gmail(dot)com wrote:

> I'm doing some php programming on my own webserver.
>
> I get the error message: PHP Fatal error: Can't use function return
> value in write context in line 69
>
> This is line 69: if (mysqli_num_rows($sDBResultaat) = 1 )
>
> Either I don see what I'm doing wrong or I interpret the message wrong.
> Either way I don't understand, can somebody point me the right way?

Consider:

<?php

function x()
{
return 5;
}

x() = 1;

?>

although x() gives the value 5, it is not a variable that can be set, and
so you can not assign (or write) a value (such as 1) to it.

The php error message is saying that you can't assign (or write) a value
to a function call, or in other words, the return value of a function
call is read_only data.

Rgds

Denis McMahon

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[Message index]

		error message I don understand By: liebling.kreuzberg@gm on Fri, 15 July 2011 14:38
		Re: error message I don understand By: Billy Mays on Fri, 15 July 2011 14:44
		Re: error message I don understand By: liebling.kreuzberg@gm on Fri, 15 July 2011 17:26
		Re: error message I don understand By: The Natural Philosoph on Fri, 15 July 2011 17:45
		Re: error message I don understand By: liebling.kreuzberg@gm on Fri, 15 July 2011 18:36
		Re: error message I don understand By: VanguardLH on Fri, 15 July 2011 19:25
		Re: error message I don understand By: The Natural Philosoph on Fri, 15 July 2011 20:36
		Re: error message I don understand By: liebling.kreuzberg@gm on Sat, 16 July 2011 09:17
		Re: error message I don understand By: The Natural Philosoph on Sat, 16 July 2011 12:52
		Re: error message I don understand By: Heinrich Ksner on Tue, 02 August 2011 14:02
		Re: error message I don understand By: The Natural Philosoph on Fri, 15 July 2011 20:35
		Re: error message I don understand By: Jerry Stuckle on Sat, 16 July 2011 13:30
		Re: error message I don understand By: liebling.kreuzberg@gm on Sat, 16 July 2011 19:14
		Re: error message I don understand By: The Natural Philosoph on Sat, 16 July 2011 21:18
		Re: error message I don understand By: The Natural Philosoph on Fri, 15 July 2011 16:49
		Re: error message I don understand By: liebling.kreuzberg@gm on Fri, 15 July 2011 17:25
		Re: error message I don understand By: Denis McMahon on Sat, 16 July 2011 19:28
		Re: error message I don understand By: liebling.kreuzberg@gm on Sun, 17 July 2011 08:21
		Re: error message I don understand By: Thomas 'PointedEars' on Sun, 17 July 2011 09:10
		Re: error message I don understand By: The Natural Philosoph on Sun, 17 July 2011 09:20
		Re: error message I don understand By: Jerry Stuckle on Sun, 17 July 2011 13:01
		Re: error message I don understand By: Jerry Stuckle on Sun, 17 July 2011 13:00
		Re: error message I don understand By: Denis McMahon on Sun, 17 July 2011 14:53
		Re: error message I don understand By: dougatmilmacdotcom on Sun, 17 July 2011 16:26
		Re: error message I don understand By: liebling.kreuzberg@gm on Mon, 18 July 2011 16:11
		Re: error message I don understand By: Denis McMahon on Sun, 17 July 2011 14:52
		Re: error message I don understand By: Thomas 'PointedEars' on Mon, 18 July 2011 15:19
		Re: error message I don understand By: The Natural Philosoph on Mon, 18 July 2011 16:01
		Re: error message I don understand By: liebling.kreuzberg@gm on Mon, 18 July 2011 16:07
		Re: error message I don understand By: Thomas 'PointedEars' on Mon, 18 July 2011 16:27
		Re: error message I don understand By: liebling.kreuzberg@gm on Mon, 18 July 2011 20:12
		Re: error message I don understand By: August Karlstrom on Sun, 17 July 2011 12:55
		Re: error message I don understand By: Jerry Stuckle on Sun, 17 July 2011 13:03
		Re: error message I don understand By: August Karlstrom on Sun, 17 July 2011 14:50
		Re: error message I don understand By: Jerry Stuckle on Sun, 17 July 2011 16:26
		Re: error message I don understand By: Peter H. Coffin on Sun, 17 July 2011 16:31
		Nasty language semantics (Was: error message I don understand) By: August Karlstrom on Sun, 17 July 2011 17:47
		Re: Nasty language semantics (Was: error message I don understand) By: Jerry Stuckle on Sun, 17 July 2011 18:12
		Re: Nasty language semantics (Was: error message I don understand) By: Robert Heller on Sun, 17 July 2011 18:26
		Re: Nasty language semantics (Was: error message I don understand) By: Tim Streater on Sun, 17 July 2011 19:23
		Re: Nasty language semantics (Was: error message I don understand) By: The Natural Philosoph on Sun, 17 July 2011 19:50
		Re: Nasty language semantics (Was: error message I don understand) By: Robert Heller on Sun, 17 July 2011 20:17
		Re: Nasty language semantics (Was: error message I don understand) By: The Natural Philosoph on Sun, 17 July 2011 20:21
		Re: Nasty language semantics By: Thomas 'PointedEars' on Mon, 18 July 2011 16:17
		Re: Nasty language semantics (Was: error message I don understand) By: Tim Streater on Sun, 17 July 2011 22:06
		Re: Nasty language semantics (Was: error message I don understand) By: August Karlstrom on Sun, 17 July 2011 22:48
		Re: Nasty language semantics (Was: error message I don understand) By: Jerry Stuckle on Sun, 17 July 2011 23:23
		Re: Nasty language semantics (Was: error message I don understand) By: August Karlstrom on Sun, 17 July 2011 23:51
		Re: Nasty language semantics (Was: error message I don understand) By: Jerry Stuckle on Mon, 18 July 2011 01:18
		Re: Nasty language semantics (Was: error message I don understand) By: Tim Streater on Mon, 18 July 2011 08:22
		Re: Nasty language semantics (Was: error message I don understand) By: Peter H. Coffin on Mon, 18 July 2011 15:57
		Re: error message I don understand By: Thomas 'PointedEars' on Mon, 18 July 2011 15:55
		Nasty language semantics (Was: error message I don understand) By: August Karlstrom on Mon, 18 July 2011 18:31
		Re: Nasty language semantics By: Thomas 'PointedEars' on Mon, 18 July 2011 19:29

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