The `alternative' way to write if/elseif/else statements, using if();
elseif(); else; endif; cannot be efficiently implemented without
adding a large amount of complexity to the 3.0 parser. Because of
this, the syntax has been changed:
Example A-5. Migration: old if..endif syntax
if ($foo);
echo "yep\n";
elseif ($bar);
echo "almost\n";
else;
echo "nope\n";
endif;
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Example A-6. Migration: new if..endif syntax
if ($foo):
echo "yep\n";
elseif ($bar):
echo "almost\n";
else:
echo "nope\n";
endif;
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Notice that the semicolons have been replaced by colons in all
statements but the one terminating the expression (endif).
