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Phpworker
answered Nov 30 '-1 00:00
<=> is combination of three operator : < (is gretar than ) , > (is less than ) and == (is equal to than)
so it is three way of Combined Comparison in single expression . its called " Combined Comparison "
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Nilesh
answered Nov 30 '-1 00:00
<=> operator work on its return value .
how <=> react
suppose a<=>b than
1. if a and b is equal . it return 0
2. if a is greater than b than it return 1
3. if a is less than b than it return -1
means
a==b , return 0
a>b , return 1
a<b , return -1
in short single expression it check three possibilities . make our code shrink little bit .
why <=> is called 'Spaceship' Operator ? -
Rasi
Jan 6 '17 06:14
its only because its look like space <=> -
Mitul Dabhi
Feb 10 '17 22:20