在 macOS 上安装 Composer 时出错(JIT 编译失败)
当我在 macOS 终端中运行 composer --version 时，出现以下错误.
When I run composer --version in the macOS terminal, I get the following errors.
PHP 警告:preg_match():JIT 编译失败:没有更多内存phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php在第 755 行
PHP Warning: preg_match(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php on line 755
Warning: preg_match(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php
在第 755 行PHP 警告:preg_match():JIT 编译失败:没有更多内存phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php在第 759 行
on line 755 PHP Warning: preg_match(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php on line 759
Warning: preg_match(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php
在线 759PHP 警告:preg_split():JIT 编译失败:没有更多内存phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php在第 654 行
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
Warning: preg_split(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php
在第 654 行PHP 警告:preg_split():JIT 编译失败:没有更多内存phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php在第 1091 行
on line 654 PHP Warning: preg_split(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php on line 1091
Warning: preg_split(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php
在线 1091PHP 警告:preg_replace():JIT 编译失败:没有更多内存phar:///usr/local/bin/composer.phar/vendor/symfony/console/Formatter/OutputFormatter.php第 36 行
on line 1091 PHP Warning: preg_replace(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Formatter/OutputFormatter.php on line 36
Warning: preg_replace(): JIT compilation failed: no more memory in phar:///usr/local/bin/composer.phar/vendor/symfony/console/Formatter/OutputFormatter.php
第 36 行
[ErrorException]
preg_match_all(): JIT compilation failed: no more memory
推荐答案
这是一个已知的 PHP 7.3 bug，已经修复了.
This is a known PHP 7.3 bug, which has already been fixed.
作为临时解决方法，编辑您的 php.ini 文件(在我的情况下:vi/usr/local/etc/php/7.3/php.ini)，通过更改禁用 PHP PCRE JIT 编译:
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
到
pcre.jit=0
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