Why is ("1e3" == "1000") true?

Question

<?php
if("1e3" == "1000")
echo "wow";
else
echo "nop";
?>

Is true and print "wow";

Could someone explain it to me?

Answer 1

I think this is scientific notation used for numbers
1000 = 10^3 = 1 * 10^3 = 1 e3
and after some trial and error i think this is true
try this ->
100 == 1e2
300 == 3e2
5000 == 5e3

Answer 2

Yeah it works in php I don't know why.
in the string the first letter represents the number first letter.The "E" does the real thing.the third letter represents number of 0's
1e3==1000
1e1==10
1e4==10000
4e3==4000

Answer 3

https://stackoverflow.com/questions/4576927/convert-a-string-containing-a-number-in-scientific-notation-to-a-double-in-php

Answer 4

echo 1e8;

works too btw. :-)
Thanks!

Answer 5

why did u use dollar symbol