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run code in 300+ PHP versions simultaneously
<?php class testClass { public function __construct(){echo 'JO';} } class t { public function __construct($T){ $myObj = new {$T};} } $obj = new t('testClass');
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.29
Parse error: syntax error, unexpected '{' in /in/08uPr on line 8
Process exited with code 255.

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