131.
What will be the output of the following PHP code ?
<?php
$a  =  '12345';
print "qwe".$a."rty";
?>

132.
What will be the output of the following PHP code ?
<?php
$a  =  '12345';
echo 'qwe{$a}rty';
?>

133.
What will be the output of the following PHP code ?
<?php
$a  =  '12345';
echo "qwe$arty";
?>

139.
Numbers in PHP can’t be infinitely large or small, there is some minimum and maximum size. If more larger (or smaller) numbers are needed then . . . . . must be used:
1. GPM libraries
2. GMP libraries
3. CBMath
4. BCMath

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