Extract MySQL fields of row into PHP variables and array

I have a table with a whole bunch of fields and records in it (40+fields).

I use my MySQL result like so:

<?php
 $field1 = $row['field1'];
 $field2 = $row['field2'];
 $field3 = $row['field3']; 
?>

As you see, the variable name is the same as the field name.

How can I do this for all fields, without having to type em all out? Would be really awesome for when I add more fields!

I know about the eval function, how开发者_开发知识库ever I am not sure of how to use it in this case.

Also, how can I generate an array with the results? Like so:

<?php
  $arr = array(
           'field1'=>$row['field1']
               );
?>

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You can use extract():

extract($row);

However, take great care you don't pollute your namespace with this function. Say you already have a variable named $car, and you have a field in your database called car. You could be unwittingly overwriting your existing variables!

It may be safer, then, to use:

extract($row, EXTR_SKIP); // don't extract variables that already exist in the namespace

EDIT: In regards to your edit, you don't need to create an array for the results... your $row array is the result. If you construct the array as in your edit, $arr['field1'] = $row['field1'], so why not bypass the construction of this array altogether and just use the original $row?

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The extract() function does exactly this:

extract($row);

By default it will override any existing variable (e.g. if you already have a field1 variable, it will override it). You can disable this by passing EXTR_SKIP as second parameter:

extract($row, EXTR_SKIP);

Or you can prefix all variables:

extract($riw, EXTR_PREFIX_ALL, 'row');

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Also, how can I generate an array with the results?

$arr = $row;