PHP Taskbook Level 2.4

Given a string of letters and numbers, get the position of the first digit in that string.

Given an object with keys and values, write the object's keys into the first array and the object's values ​​into the second.

Given a number, output to the console the number of even digits in this number.

Given a string:

Convert all odd letters of this line to uppercase. In our case, we should get the following:

There is a certain line with the words:

Capitalize the first character of each word in this line. In our case, it should look like this: