如何从核心php中的两个变量中提取常用词

Question

$a=I love India.
$b=India is my country.

in core php how can extract common word from these two variables.

Answer 1

try this, the live demo

$a='I love India';
$b='India is my country';
print_r(array_intersect(explode(' ', $a), explode(' ', $b)));