arrays - Issue with using extract() PHP -

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i have dynamically created array , want extract array , put each item own variable.

here's php:

$bar = $_post['foo']; extract($bar); echo $1;

foo array form made.

whenever run script error: 

parse error: syntax error, unexpected '1' (t_lnumber), expecting variable (t_variable) or '$' in /application/...

when change code to: 

$bar = $_post['foo']; extract($bar, extr_prefix_all, "bar_"); echo $bar_1;

i undefined variable error.

please me.

update:

my first code informational, person might come across question problem not knowing what's wrong. second piece of code actual code.

m intention input each array item different field in mysql table. haven't written full code yet since extract() thing doesn't seem working.

update 2:

$_post['foo'] array of checkbox values

variables in php cannot start numbers:

echo $1;

that's invalid , throw error.

you're using extract improperly in you're using on may or may not array. have no guarantee $_post['foo'] associative array(and it's not), array type extract works on. extract uses keys associative array create new variables.


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