如何用数组中的多个＃替换？

Question

I'm not exactly sure what this is called but is common in programming, often using the ? instead of the % which I use in this example.

Say I have a string:

"How many % does it take the build a % out of aluminum cans?"

And I want to replace the % symbol with specific values from an array based on their index and the position in the string. In this case:

['robots', 'laser gun']

The result would be:

How many robots does it take to build a laser gun out of aluminum cans?

Is there any way to easily accomplish this in PHP?

Answer 1

just adding to the options :-)

<?php

$s=    "How many  %1\$s does it take the build a  %2\$s out of aluminum cans?";
$a=array('robots', 'laser gun');

echo vsprintf($s,$a)
?>