错误在macOS上安装Composer（JIT编译失败）

Question

当我在macOS终端中运行composer --version时，我收到以下错误：

PHP警告：preg_match（）：JIT编译失败：第755行的phar：///usr/local/bin/composer.phar/vendor/symfony/console/Application.php中没有更多内存

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

Answer 1

这是一个已知的PHP 7.3 bug。

作为临时修复，编辑您的php.ini文件（在我的情况下：vi /usr/local/etc/php/7.3/php.ini），通过更改以下命令禁用PHP PCRE JIT编译：

;pcre.jit=1

至

pcre.jit=0

Answer 2

我通过禁用PCRE jit编译解决了这个问题。

我想你通过自制软件安装了php 7.3。

如果是这样，请在zzz-myphp.ini中创建一个/usr/local/etc/php/7.3/conf.d，其中包含以下内容：

; My php.ini settings
; Fix for PCRE "JIT compilation failed" error
[Pcre]
pcre.jit=0

Answer 3

其他答案建议通过配置文件禁用PCRE JIT。这有效，但需要注意：这会禁用所有使用这些INI文件的引擎调用的PCRE JIT。因此，您可能无法获得JIT改进的潜在更广泛的功能，这可能是不可取的。

您只能通过以下方式禁用composer的JIT：

php -d pcre.jit=0 composer.phar ...

Answer 4

在PHP 7.1.24中，php.ini文件中没有'pcre.jit'，所以你必须设置memory_limit:128M（如果你增加它）。

Answer 5

谢谢你的答案..我通过命令composer.phar解决了它，然后导出路径。例：

$composer.phar
$export PATH=/usr/local/php5/bin:$PATH
$composer.phar --version