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Question : Php related question
hello dear experts, i have here some php code and there are some lines that i do not understand.
1. What does this line do?
$qrrystring = '?'.preg_replace('/&page=(
[0-9])+/',
'',$qrryst
ring).'&am
p;';
2. What does this line do?
$obj1 = new F1();
3. what does this code do?
if(isset($myrekest['PHPSES
SID']))
{
unset($myrekest['PHPSESSID
']);
}
if(isset($myrekest['__utmz
']))
{
unset($myrekest['__utmz'])
;
}
if(isset($myrekest['__utma
']))
{
unset($myrekest['__utma'])
;
}
if(isset($myrekest['__utmc
']))
{
unset($myrekest['__utmc'])
;
}
if(isset($myrekest['__utmb
']))
{
unset($myrekest['__utmb'])
;
}
Thank you
Answer : Php related question
1. Replaces the 'querystring' in a URL with &page=([0-9])+
2. Creates a 'new' object of the class F1.
3. 'Unsets' or makes null a series of cookie values.
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