substr from position 15, 5 characters => dolor
substr from position -5, 4 characters => elit
strpos of dolor (case sensitive) => 12
stripos of dOLlor (case insensitive) => 12
str_replace ipsum (case sensitive) with hello => Lorem IPSUM dolor sit amet, consectetur hello adipiscing elit.
str_replace ipsum (case insensitive) with hello => Lorem hello dolor sit amet, consectetur hello adipiscing elit.
strlen (length) of a => 62
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.