Warning: preg_match(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php on line 759
PHP Warning: preg_split(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php on line 654
SOLUCION:
PARA VER QUE HAY EN EL PHP.INI EJECUTA «php –ini» en la terminal
This is a known PHP 7.3 bug, which has already been fixed.
As a temporary workaround, edit your php.ini file (in my case: vi /usr/local/etc/php/7.3/php.ini), disable PHP PCRE JIT compilation by changing:
;pcre.jit=1
to
pcre.jit=0
Gatadas 