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@ 2019-11-01T06:05:19Z

<?php

$myArray = array (
    14 => 
    array (
        0 => 29,
        1 => 129
    ),
    193 => 
    array (
        0 => 6009231,
        1 => 6324415,
        2 => 5682922
    )
);
$result = array();
list($k1, $k2) = array_keys($myArray);
foreach ($myArray[$k1] as $v1) {
    foreach ($myArray[$k2] as $v2) {
        $result[] = "$k1:$v1;$k2:$v2";
    }
}
print_r($result);

Output
Performance
VLD
References
Branches

print_r: documentation ( source)
array_keys: documentation ( source)

preferences:dark modelive previewkey bindings

25.01 ms | 405 KiB | 5 Q