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run code in 300+ PHP versions simultaneously
<?php class category { public $name; public $subCats = array(); public function __construct($name = "") { $this->name = $name; } public function add_sub_cat($subCat) { array_push($this->subCats, $subCat); } } function tree_print($root_category) { $stack = array(array($root_category)); echo '<ul>'."\n"; while (count($stack)) { $category = array_shift($stack[count($stack)-1]); echo '<li><div id="category-name"><p>' . $category->name . '</p></div></li>'."\n"; echo '<ul>'."\n"; $stack[] = $category->subCats; while (count($stack) && count($stack[count($stack)-1]) == 0) { echo '</ul>'."\n"; array_pop($stack); } } } $x = new category('root'); $x->add_sub_cat(new category('foo')); $x->add_sub_cat(new category('bar')); $x->subCats[0]->add_sub_cat(new category('baz')); $x->subCats[1]->add_sub_cat(new category('baz2')); tree_print($x);
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
<ul> <li><div id="category-name"><p>root</p></div></li> <ul> <li><div id="category-name"><p>foo</p></div></li> <ul> <li><div id="category-name"><p>baz</p></div></li> <ul> </ul> </ul> <li><div id="category-name"><p>bar</p></div></li> <ul> <li><div id="category-name"><p>baz2</p></div></li> <ul> </ul> </ul> </ul> </ul>
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 <ul> <li><div id="category-name"><p>root</p></div></li> <ul> <li><div id="category-name"><p>foo</p></div></li> <ul> <li><div id="category-name"><p>baz</p></div></li> <ul> </ul> </ul> <li><div id="category-name"><p>bar</p></div></li> <ul> <li><div id="category-name"><p>baz2</p></div></li> <ul> </ul> </ul> </ul> </ul>
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/umpvf on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/umpvf on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/umpvf on line 3
Process exited with code 255.
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303.65 ms | 401 KiB | 466 Q