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<?php $array = [ "value.inside.array", "val-2.of.array", ".var2.in.arr", "dot.notation.", "value. dot", "consecutive....dots", "a.b.c.d.e.f" ]; var_export( preg_grep('~^[^.\s]+(?:\.[^.\s]+)+$~', $array) );
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
array ( 0 => 'value.inside.array', 1 => 'val-2.of.array', 6 => 'a.b.c.d.e.f', )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array ( 0 => 'value.inside.array', 1 => 'val-2.of.array', 6 => 'a.b.c.d.e.f', )
preferences:
131.35 ms | 402 KiB | 156 Q