How does the following lines of code work in PHP?

Question

So I have a couple of examples with sums in PHP and they are as following:

$var = "0"; // $var = "0" string
$var++; // $var = "1"
$var+=1; // $var = 2 integer
$var += ‘c’; // $var = 2 integer
$var = $var + 1.3; // $var = 3.3 float
$var = 5 + "10 obiecte"; // $var =15
$var = 5 + "obiecte"; // $var =5 integer

But I do not understand the following one: $var = 5 + "10 obiecte"; // $var =15, why is this sum equal to 15? Does PHP takes the integer out of the string and adds it to 5? Is this somehow similar to Python? If there was something like $var = 5 + "1object0", what will the sum be like?

question from:https://stackoverflow.com/questions/65602469/how-does-the-following-lines-of-code-work-in-php

Answer 1

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