What is the result of the following comparison: var_dump(0 == ‘php’);

Question

PHP Intermediate — Hard

What is the result of the following comparison: var_dump(0 == ‘php’);

Accepted Answer

When comparing an integer to a non-numeric string, PHP casts the string to an integer. The string 'php' does not start with a numeric character, so it is cast to the integer 0. Since 0 == 0 is true, the entire expression evaluates to true. This is a common source of bugs in loose comparisons.