While it's understandable that the PHP developers don't consider this a bug, or don't consider it a bug worth their time, jsimlo was right to point out that mixing alternative if syntaxes might lead to unexpected results. Instead of concluding that the else statement was intended to match the if($b) statement (and erroring out), the parser could match the else statement to the if($a) statement, which shares its syntax. In other words, one would expect that this would work: The following is illegal (as it should be):īut since the two alternative if syntaxes are not interchangeable, it's reasonable to expect that the parser wouldn't try matching else statements using one style to if statement using the alternative style. In PHP, the if-else-if statement (also known as elseif) allows you to test multiple conditions and execute different blocks of code based on the first condition that evaluates to true. The parser doesn't handle mixing alternative if syntaxes as reasonably as possible.

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Php if else factoring