3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '1 NM 2951-2 S Sodium: LN 144 mmol/L mmol/L 135-145 F 201402150533 2 NM 2823-3 S Potassium: LN 5.6 mmol/L mmol/L 3.5-5.5 H F 201402150533 3 NM 2075-0 S Chloride: LN 103 mmol/L mmol/L 95-110 F 201402150533'; echo preg_replace('/\b\d{12}\b(?!$)\K\s*/', '<br>', $str);
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
1 NM 2951-2 S Sodium: LN 144 mmol/L mmol/L 135-145 F 201402150533<br>2 NM 2823-3 S Potassium: LN 5.6 mmol/L mmol/L 3.5-5.5 H F 201402150533<br>3 NM 2075-0 S Chloride: LN 103 mmol/L mmol/L 95-110 F 201402150533
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

preferences:
88.7 ms | 407 KiB | 5 Q