为什么PHP和Flash之间的“+”符号消失了？

Question

I am passing a string variable between PHP and flash, and the variable has "3+L-T" inside it. When I echo it in PHP in a broswer, the plus sign shows up. However, when i trace it in flash the + sign is replaced with a space. So it reads "3 L-T". I know i have the proper embedded fonts because i also traced a variable generated in flash with + sign and it works fine.

My code in PHP is

$pitchAlg = "3+L-T";
echo ("systemResult=$pitchAlg");

output: systemResult=3+L-T

My code in AS3 is

pitchID = e.target.data.systemResult;
trace(pitchID);
sample="3+L-T";
trace(sample);

output: 3 L-T 3+L-T

Any help is appreoiated. Thanks, Chi

Answer 1

URL encode it in PHP before you send it to Flash:

$pitchAlg = "3+L-T";
echo "systemResult=" . rawurlencode($pitchAlg);