在macOS上安装Composer时出错(JIT编译失败) [英] Errors Installing Composer on macOS (JIT compilation Failed)

问题描述

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:内存不足 phar:///usr/local/bin/composer.phar/vendor/symfony/console/Application.php 在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 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 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 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 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 on line 36

  [ErrorException]                                          
  preg_match_all(): JIT compilation failed: no more memory

推荐答案

这是已知的PHP 7.3

This is a known PHP 7.3 bug.

作为临时解决方案，请编辑您的php.ini文件(在我的情况下为vi /usr/local/etc/php/7.3/php.ini)，并通过以下操作禁用PHP PCRE JIT编译:

As a temporary fix, 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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