Strange offset error in PHP [duplicate] - php

Question

This question already has answers here:
What causes: "Notice: Uninitialized string offset" to appear? [closed]
(5 answers)
Closed 9 years ago.
I am getting an error I cannot solve.
The error is:
Uninitialized string offset: 1
The code is:
if($play_count_within_45_minutes[1] > $play_history_old_over_45_minutes_ago[$i][1]){...}
The error is occurring on the $play_count_within_45_minutes[1] variable, because when I change the index to 0 (as in $play_count_within_45_minutes[0]), it works fine.
I had it display what the value would be, and it outputs fine, with this code:
print_r($play_count_within_45_minutes[1]);
The output is:
1.0E+80
The original variable declaration is:
$play_count_within_45_minutes = [0, 100000000000000000000000000000000000000000000000000000000000000000000000000000000];
I don't think the number is too large, as I tried changing it 1 and I got the same error.
I found it has something to do with this loop (print_r() is in there as I was testing it, and it gives the same error):
for($i=0; $i <= (count($play_history_old_over_45_minutes_ago)-1); $i++ ){
echo "<br>";
print_r($play_count_within_45_minutes[1]);
echo "<br>";
if($play_count_within_45_minutes[1] > $play_history_old_over_45_minutes_ago[$i][1]){
$play_count_within_45_minutes = $play_history_old_over_45_minutes_ago[$i][1];
}
}

Answer 1

Alright, I found the reason I couldn't figure it out.
What I didn't know about the PHP errors is that it treats everything after the original if statement as the same line, so even though the error was on line 105, it kept telling me it was on 104.
However, I still don't know why changing the original $play_count_within_45_minutes[1] to $play_count_within_45_minutes[0] solved the problem. Nonetheless, that would have still had a problem.
The fixed code is:
for($i=0; $i <= (count($play_history_old_over_45_minutes_ago)-1); $i++ ){
echo "<br>";
print_r($play_count_within_45_minutes[1]);
echo "<br>";
if($play_count_within_45_minutes[1] > $play_history_old_over_45_minutes_ago[$i][1]){
$play_count_within_45_minutes[1] = $play_history_old_over_45_minutes_ago[$i][1];
}
}
It seems like a dumb error, but I really didn't know about PHP treating the entire line following the if statement as the same line.