3v4l.org

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<?php $num = "0xa"; $hexstr = sprintf("%x",( $num + 3)); // 0 $hexstr2 = sprintf("%s", hexdec($num) + 3 ); var_dump($hexstr,$hexstr2);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: A non-numeric value encountered in /in/C7Ch4 on line 4 string(1) "3" string(2) "13"
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: A non well formed numeric value encountered in /in/C7Ch4 on line 4 string(1) "3" string(2) "13"
Output for 7.0.0 - 7.0.20, 7.3.32 - 7.3.33
string(1) "3" string(2) "13"
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
string(1) "d" string(2) "13"
preferences:
167.01 ms | 402 KiB | 183 Q