最近在开发一个安装程序的时候,打包为了 phar 包,遇到了一个问题就是打包后的 phar 包不能省略 php 去执行。
# 正常运行
php install.phar
# 报错
./install.phar
省略 php 去运行时报错:
$ ./install.phar
./install.phar: line 1: ?php: No such file or directory
./install.phar: line 3: =: command not found
./install.phar: line 5: syntax error near unexpected token `'phar','
./install.phar: line 5: `if (in_array('phar', stream_get_wrappers()) && class_exists('Phar', 0)) {'
到这里就不知道具体原因了,因为按照正常 phar 的流程打包是没有问题的,但是确实是不能省略运行。
在网上搜索一圈也没有具体的答案,想到 composer
可以省略 php 去运行,于是乎去查看了一下 composer
的源码,
找到了一个 compile 方法,发现代码中有一个setStub
的操作,调用了getStub()
:
private function getStub()
{
$stub = <<<'EOF'
#!/usr/bin/env php
<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <[email protected]>
* Jordi Boggiano <[email protected]>
*
* For the full copyright and license information, please view
* the license that is located at the bottom of this file.
*/
// Avoid APC causing random fatal errors per https://github.com/composer/composer/issues/264
if (extension_loaded('apc') && filter_var(ini_get('apc.enable_cli'), FILTER_VALIDATE_BOOLEAN) && filter_var(ini_get('apc.cache_by_default'), FILTER_VALIDATE_BOOLEAN)) {
if (version_compare(phpversion('apc'), '3.0.12', '>=')) {
ini_set('apc.cache_by_default', 0);
} else {
fwrite(STDERR, 'Warning: APC <= 3.0.12 may cause fatal errors when running composer commands.'.PHP_EOL);
fwrite(STDERR, 'Update APC, or set apc.enable_cli or apc.cache_by_default to 0 in your php.ini.'.PHP_EOL);
}
}
if (!class_exists('Phar')) {
echo 'PHP\'s phar extension is *missing. Composer requires it to run. Enable the extension or recompile php without --disable-phar then try again.' . PHP_EOL;
exit(1);
}
Phar::mapPhar('composer.phar');
EOF;
// add warning once the pha*r is older than 60 days
if (preg_match('{^[a-f0-9]+$}', $this->version)) {
$warningTime = ((int) $this->versionDate->format('U')) + 60 * 86400;
$stub .= "define('COMPOSER_DEV_WARNING_TIME', $warningTime);\n";
}
return $stub . <<<'EOF'
require 'phar://composer.phar/bin/composer';
__HALT_COMPILER();
EOF;
}
看到这里,就觉得可能是这里的问题,因为我是直接使用了createDefaultStub
方法去创建的stub
$phar->setStub($phar->createDefaultStub('install.php'));
参考 composer
的代码进行了一些修改:
$dirname = dirname(__DIR__);
$pharFile = $dirname . '/install.phar';
if (file_exists($pharFile)) {
unlink($pharFile);
}
function getStub()
{
$stub = <<<'EOF'
#!/usr/bin/env php
<?php
if (!class_exists('Phar')) {
echo 'PHP\'s phar extension is missing. Install requires it to run. Enable the extension or recompile php without --disable-phar then try again.' . PHP_EOL;
exit(1);
}
Phar::mapPhar('install.phar');
EOF;
return $stub . <<<'EOF'
require 'phar://install.phar/bin/install';
__HALT_COMPILER();
EOF;
}
$phar = new Phar($pharFile, 0, 'install.phar');
$phar->startBuffering();
$phar->buildFromDirectory($dirname);
$phar->delete('bin/build.php');
$phar->delete('.gitignore');
$phar->delete('install');
$content = file_get_contents($dirname . '/install');
$content = preg_replace('{^#!/usr/bin/env php\s*}', '', $content);
$phar->addFromString('bin/install', $content);
$phar->setStub(getStub());
$phar->stopBuffering();
再次尝试后,就可以省略 php 去运行了。
最后,提供了一个获取 php 信息的 phar 包,用于快速获取一些信息,如版本、ini 目录、是否为 zts 和 debug 版本等
https://github.com/lufei/phpinfo
下载 phpinfo.phar
:
chmod +x phpinfo.phar
cp phpinfo.phar /usr/local/bin/phpinfo
执行 phpinfo
:
$ phpinfo
PHP_SAPI:cli
PHP_VERSION:8.0.6
PHP_ZTS:false
PHP_DEBUG:false
PHP_OS:Darwin
PHP_BINARY:/Users/lufei/.phpbrew/php/php-8.0.6/bin/php
PHP_CONFIG_FILE_PATH:/Users/lufei/.phpbrew/php/php-8.0.6/etc
PHP_LOADED_CONFIG_FILE:/Users/lufei/.phpbrew/php/php-8.0.6/etc/php.ini
PHP_CONFIG_FILE_SCAN_DIR:/Users/lufei/.phpbrew/php/php-8.0.6/var/db
网站用php和用python相比有什么区别?感觉php的功能用python都能实现,但python明显强大多了。
@沉舟侧畔 php是世界上最好的语言