Online PHP editor | output for SWfOt

@ 2021-08-14T10:57:58Z

<?php

$expr1 = null;
$expr2 = 'expr2';
$expr3 = 'expr3';

$result = ($expr1) ? ($expr2) : ($expr3);

var_dump($result);

if (true === $expr1) {
  $result = $expr2;
} else {
  $result = $expr3;
}

var_dump($result);

$result = ($expr1) ?: ($expr3);

var_dump($result);

if (true === $expr1) {
  $result = $expr1;
} else {
  $result = $expr3;
}

var_dump($result);

$result = ($expr1) ?? ($expr3);

var_dump($result);

if (null !== $expr1) {
  $result = $expr1;
} else {
  $result = $expr3;
}

var_dump($result);

Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.4, 8.3.6 - 8.3.15, 8.4.1 - 8.4.2: string(5) "expr3" string(5) "expr3" string(5) "expr3" string(5) "expr3" string(5) "expr3" string(5) "expr3"
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 string(5) "expr3" string(5) "expr3" string(5) "expr3" string(5) "expr3" string(5) "expr3" string(5) "expr3"

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