PHP - print the result of a boolean expression -

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i expect following code print "false"

<?php     $a = 4;     $b = 45;     echo $a==$b; ?>

but prints nothing.

it doesn't print because result of $a==$b boolean, , false converted empty string. use var_dump instead (if debugging code):

var_dump($a==$b);

or alternatively can use echo way:

echo ($a==$b) ? 'true' : 'false';

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