3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a= array( 'mela' => 'pera', 'pippo'=> 'pera', 'carlo'=>'banana', 'saverio'=>'pera', 'antonio'=>'banana', ); $b= array_diff_key( $a , array_unique( $a ) ); $i=0; print_r($b); foreach($b as $c => $key){ print_r($c); print_r'<br/>' print_r($key); }
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected ''<br/>'' (T_CONSTANT_ENCAPSED_STRING) in /in/YHVCk on line 22
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/YHVCk on line 22
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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/YHVCk on line 22
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/YHVCk on line 22
Process exited with code 255.
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