Logical OR in PHP

Logical OR requires the fulfillment of at least one condition. In the following example, the condition will be met if the variable $num1 is greater than 0 or the variable $num2 is greater than 0 (it is sufficient to fulfill at least one of the conditions):

<?php
	$num1 = 10;
	$num2 = -5;
	
	if ($num1 > 0 or $num2 > 0) {
		echo '+++'; // this will work
	} else {
		echo '---';
	}
?>

Without running the code, determine what will be displayed on the screen:

<?php
	$num1 = -10;
	$num2 = -10;
	
	if ($num1 >= 0 or $num2 >= 0) {
		echo '+++';
	} else {
		echo '---';
	}
?>

Without running the code, determine what will be displayed on the screen:

<?php
	$num1 = 0;
	$num2 = 0;
	
	if ($num1 >= 0 or $num2 >= 0) {
		echo '+++';
	} else {
		echo '---';
	}
?>

Without running the code, determine what will be displayed on the screen:

<?php
	$num1 = 0;
	$num2 = 5;
	
	if ($num1 >= 0 or $num2 >= 0) {
		echo '+++';
	} else {
		echo '---';
	}
?>

Without running the code, determine what will be displayed on the screen:

<?php
	$num1 = 5;
	$num2 = 5;
	
	if ($num1 >= 0 or $num2 >= 0) {
		echo '+++';
	} else {
		echo '---';
	}
?>

Without running the code, determine what will be displayed on the screen:

<?php
	$num1 = -5;
	$num2 = 15;
	
	if ($num1 >= 0 or $num2 >= 0) {
		echo '+++';
	} else {
		echo '---';
	}
?>

Without running the code, determine what will be displayed on the screen:

<?php
	$num = 1;
	
	if ($num == 0 or $num == 1) {
		echo '+++';
	} else {
		echo '---';
	}
?>

Without running the code, determine what will be displayed on the screen:

<?php
	$num = 2;
	
	if ($num == 0 or $num == 1) {
		echo '+++';
	} else {
		echo '---';
	}
?>

Without running the code, determine what will be displayed on the screen:

<?php
	$num = 2;
	
	if ($num == 0 or $num == 1 or $num == 2) {
		echo '+++';
	} else {
		echo '---';
	}
?>