PHP

php count vs sizeof

//pre-calculate the size of array
$size = count($x); //or $size = sizeOf($x);

for ($i=0; $i<$size; $i++) {
    //...
}

//don't pre-calculate
for ($i=0; $i<count($x); $i++) { //or $i<sizeOf($x);
    //...
}

count vs sizeof php

#Use Count Fn 
.The sizeof() method takes a longer execution time.
.The sizeof() method is an alias of the count() method.