I have this php array:
$items = array (
"Item 1" => "Value 1",
"Item 2" => "Value 2",
"Item 3" => "Value 3"
);
And I am wondering if there is an elegant PHP function I have never heard of to do the same as this:
$output = "";
foreach ( $items as $key => $value ) {
$output .= sprintf( "%s: %s\n" , $key , $value );
}
echo $output;
Which of course, would output:
Item 1: Value 1
Item 2: Value 2
Item 3: Value 3
Also, what do you call that? Deserialization?
There is always the array_walk function. Your example might look something like this:
function test_print($value, $key) {
echo sprintf( "%s: %s\n" , $key , $value );
}
$items = array (
"Item 1" => "Value 1",
"Item 2" => "Value 2",
"Item 3" => "Value 3"
);
array_walk($items, 'test_print');
After defining your function, you can then reuse array_walk($items, 'test_print'); as needed throughout your code.
There is also the array_walk_recursive function, if you're dealing with multidimensional arrays.
echo sprintf() is an antipattern which should never exist in any codebase for any reason. It just makes sense to replace it with the simpler, more logical equivalent: printf().There is nothing wrong with your solution except that you're missing a concatenation operator.
$output = "";
foreach ( $items as $key => $value ) {
$output .= sprintf( "%s: %s\n" , $key , $value );
}
echo $output;
Bare in mind that this only handles single dimension arrays.
There are so many built-in functions in PHP that we sometimes forget that we actually have to write code. It was mentioned in the comments that you could use one of the array_* functions, such as array_reduce, but that will only lead to more complexity compared to your solution.
var_dumporprint_r?$outputto the current value every time.echo '<pre>'; print_r(array); echo '</pre>';