Antes de PHP
Inicio
$quince=15

$test=10

echo ‘Segundo $test=’.$test.’
‘;
echo ‘Segundo $test=’.$test.’
‘;

Segundo $test=10
Segundo $test=10
Despues de PHP
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==============================================================
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First PHP block – start
Start
$fifteen =15
First PHP block – end

Second PHP block – start
$test=10
Second PHP block – end

Third PHP block – start
echo ‘Second $test=’.$test.’
‘;
$test = 20;
echo ‘Second $test=’.$test.’
‘;

Third PHP block – end

Four PHP block – start
Second $test=10
Second $test=20
Four PHP block – end