Online PHP editor | output for G2ihX

@ 2024-10-01T14:12:28Z

<?php
declare(strict_types=1); // print() ignores strict_types...

print (1 + 2) * 3;
// outputs "9"; the parentheses cause 1+2 to be evaluated first, then 3*3
// the print statement sees the whole expression as one argument
// As for the type mismatch? the strict_types ? ignored..

echo "\n";

if ( print("hello") and false ) {
    print "WTF: inside if";
} else {
    print "OK: inside else";
}

echo "\n";

if ( 1 && false ) {
    print "WTF: inside if";
} else {
    print "OK: inside else";
}

echo "\n";

print "hello " and print "world";
// outputs "world1"; ... WTF?

echo "\n";


ob_start();
print "hello " and print "world";
$str = ob_get_clean();
assert(str_contains($str, 'hello'));

Output for 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7: 9 helloOK: inside else OK: inside else hello world
Output for 7.0.33, 7.2.34: 9 helloOK: inside else OK: inside else hello world Fatal error: Uncaught Error: Call to undefined function str_contains() in /in/G2ihX:36 Stack trace: #0 {main} thrown in /in/G2ihX on line 36
Process exited with code 255.
Output for 5.6.40: Warning: Unsupported declare 'strict_types' in /in/G2ihX on line 2 9 helloOK: inside else OK: inside else hello world Fatal error: Call to undefined function str_contains() in /in/G2ihX on line 36
Process exited with code 255.
Output for 5.1.6, 5.2.17: 9 helloOK: inside else OK: inside else hello world Fatal error: Call to undefined function str_contains() in /in/G2ihX on line 36
Process exited with code 255.

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