3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "str starts with 0" . (strpos('CNXXXXXX122334.txt','CN') == 0) . "\n"; echo "str does not starts with 0" . (strpos('CNXXXXXX122334.txt','XT') == 0) . "\n"; echo "str starts with 0" . (strpos('CNXXXXXX122334.txt','XT') == 1) . "\n";

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35.72 ms | 402 KiB | 5 Q