${'varname_'.$x} variable in PHP [closed]

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Closed 9 years ago.

Improve this question 开发者_运维百科

Can someone please remind me how you call this type of variable

${'varname_'.$x}

Thanks!

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It's called variable variables!

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This should do it:

$varname = 'varname_'.$x;
echo $$varname;

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variable varibales!!!

$var = "varname$x";
for($x=0;$x<10;$x++)
{
    echo $$var;
}

edit ====

SHOULD BE:

for($x=0;$x<10;$x++)
{
    $var = "varname$x";
    echo $$var;
}

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Variable variables. Your example could be used like so:

$varname_0 = 'Hello World!';
$x = 0;
echo ${'varname_'.$x}; // 'Hello World!'