Most implementations of "srand" take an integer and will
silently truncate decimal numbers. This means "srand(42)" will
usually produce the same results as "srand(42.1)". To be safe,
always pass "srand" an integer.
most strings will evaluate to 0 !
DB<116> srand 0
=> 1
DB<117> rand
=> "0.17082803610629"
DB<118> rand
=> "0.749901980484964"
DB<119> srand hostname
=> 1
DB<120> rand
=> "0.17082803610629"
DB<121> rand
=> "0.749901980484964"
DB<122> 0+ hostname
=> 0
You need a checksum to produce a (pseudo) unique integer.
You could try
$seed += ord($_) for split //, hostname
But whats wrong with the IP?
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