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		So much for reading files - how about actually writing one? In PHP, 
	this is somewhat more complex, involving as it does the use of file
	"pointers" to write data to a file.

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		The function that does most of the work here is a little munchkin 
	called fopen(), which opens a pointer to the file. fopen() 
	requires two parameters - the name of the file, and the mode in 
	which the file is to be opened. This "mode" is one of the following:

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	1:	Read-only mode, activated by the parameter "r". Here, the file 
	pointer is initialized at the first line of the file.

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	2:	Write-only mode, activated by the parameter "w". Here, the file is 
	created anew and the pointer is initialized at the first line of 
	the file. If the file already exists, ALL ITS CONTENTS ARE LOST.

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	3:	Read/write mode, activated by the parameter "r+". Here, the file 
	is opened for reading and writing, with the pointer initialized 
	at the first line of the file.

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	4:	Append mode(write only), activated by the parameter "a". 
	In this case, the pointer is placed at the *end* of the file, 
	allowing you to append new content to the end of the file. 
	If the file doesn't exist, a new one is created.

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	5:	Append mode(read/write only), activated by the parameter "a+". 
	Here too, the pointer is placed at the *end* of the file, allowing 
	you to append new content to the end of the file. If the file doesn't 
	exist, a new one is created. You can also read from the file.

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		Once you've got the file opened in the right mode, it's time to 
	actually write something to it with the fputs() function. 
	Our next example demonstrates this more clearly: 


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              The temporary file named 'myfile.txt' contains the following:
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