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PHP PHP Basics Unit Converter Arithmetic Operators

Posted by Sufiyaan Haroon
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Sufiyaan Haroon
Full Stack JavaScript Techdegree Student 9,558 Points

I don't get seven when I type $a++;

treehouse:~/workspace$ php numbers.php
PHP Parse error: syntax error, unexpected ';' in /home/treehouse/workspace/numbers.php on line 24

Parse error: syntax error, unexpected ';' in /home/treehouse/workspace/numbers.php on line 24
treehouse:~/workspace$

My code was:

<?php
$num_one = 1;
$num_two = 2;
$num_three = 3;

/*var_dump( $num_one );
var_dump( 1 );
var_dump( '1' );
var_dump( $num_one + $num_two - $num_three);*/

$distance_home = 1.2;
$distance_work = 2.5;
var_dump($distance_home + $distance_work + $num_three + .3);

$a = 5;
$b = 10;

var_dump($a * $b);
var_dump($a / $b);


$a = $a + 1;
var_dump($a);
$a++;
?>

5 Answers

Darryl Driedger
seal-mask
.a{fill-rule:evenodd;}techdegree
Darryl Driedger
Full Stack JavaScript Techdegree Student 24,724 Points
Darryl Driedger
.a{fill-rule:evenodd;}techdegree
Darryl Driedger
Full Stack JavaScript Techdegree Student 24,724 Points

put var_dump($a); after your a++ and you will get your seven

Sean Flanagan
Sean Flanagan
33,236 Points
Sean Flanagan
Sean Flanagan
33,236 Points

I got caught out by this as well. It would have helped if Alena Holligan had shown the duplicated line on screen below the increment line.

Tsitsi Museza
Tsitsi Museza
2,601 Points

yes i think if she had shown how she duplicated it would be easier

Angyal István
Angyal István
11,288 Points
Angyal István
Angyal István
11,288 Points

Try one of them:

$a++;

$a += 1;

++$a;

$a = $a + 1;

But the problem maybe is that, You write the last value giver "$a++" after the "var_dump($a)", so the var_dump still contains the upper value of the $a.

I hope I can You!

DEKIMBE MURRAY
DEKIMBE MURRAY
172 Points
DEKIMBE MURRAY
DEKIMBE MURRAY
172 Points

this got me too - should have scrolled down to show we insert $a++ in between

Ryan Dower
Ryan Dower
3,141 Points
Ryan Dower
Ryan Dower
3,141 Points

I got caught out by this as well - thank goodness for this post.