3v4l.org

run code in 300+ PHP versions simultaneously
<?php function reverse($string) { $substr1 = ""; $substr2 = ""; for ($i = 0; $i < strlen($string) \ 2; $i++) { $substr1 += $string[strlen($string-$i)]; $substr2 += $string[$i]; } return $string = $substr1 + $string2; }
Output for 5.4.0 - 5.4.34
Parse error: syntax error, unexpected '\' (T_NS_SEPARATOR), expecting ';' in /in/JPVAA on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_NS_SEPARATOR, expecting ';' in /in/JPVAA on line 5
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
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/JPVAA on line 5 Parse error: syntax error, unexpected T_LNUMBER, expecting ';' in /in/JPVAA on line 5
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
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/JPVAA on line 5 Parse error: parse error, unexpected T_LNUMBER, expecting ';' in /in/JPVAA on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/JPVAA on line 5 Parse error: parse error, expecting `';'' in /in/JPVAA on line 5
Process exited with code 255.
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