Replace string based on an array?

Question

I have an array of values

array(
    'FDR' => 'Franklin D Roosevelt',
    'JFK' => 'John F Kennedy'
)

and I have a variable

$variable = 'FDR'

I want to change the variable to say Franklin D Roosevelt based on the fact that the array points FDR to Franklin D Roosevelt.

Mark Miller · Accepted Answer · 2014-05-10 00:51:36Z

1

Here's the simplest solution based on your description:

$arr = array('FDR' => 'Franklin D Roosevelt', 'JFK' => 'John F Kennedy');

$var = 'FDR';

$var = (array_key_exists($var, $arr) ? $arr[$var] : $var);

echo $var; // Franklin D Roosevelt

Or another way:

$arr = array('FDR' => 'Franklin D Roosevelt', 'JFK' => 'John F Kennedy');

$var = 'FDR';

foreach($arr as $i=>$a) {
    if ($i == $var) {
        $var = $a;
        break;
    }
}

echo $var; // Franklin D Roosevelt

edited May 10, 2014 at 0:51

answered May 10, 2014 at 0:08

Mark Miller

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