1.1.0

CHANGELOG.md

@@ -4,6 +4,11 @@
 
 - Put your changes here...
 
+## 1.1.0
+
+- Added `run` and `runWithData` methods so this module can be used as a general purpose PHP runner.
+- Updated various dependencies.
+
 ## 1.0.2
 
 - Added TypeScript definitions.

README.md

@@ -1,24 +1,54 @@
-# express-php-view-engine
+# node-php-runner
 
 [![Build Status](https://github.com/rooseveltframework/express-php-view-engine/workflows/CI/badge.svg
 )](https://github.com/rooseveltframework/express-php-view-engine/actions?query=workflow%3ACI) [![codecov](https://codecov.io/gh/rooseveltframework/express-php-view-engine/branch/master/graph/badge.svg)](https://codecov.io/gh/rooseveltframework/express-php-view-engine) [![npm](https://img.shields.io/npm/v/php.svg)](https://www.npmjs.com/package/php)
 
-This module allows you to use [PHP](https://php.net) as a templating system for [Express framework](https://expressjs.com) applications. This module was built and is maintained by the [Roosevelt web framework](https://github.com/rooseveltframework/roosevelt) [team](https://github.com/orgs/rooseveltframework/people), but it can be used independently of Roosevelt as well.
+This module allows you to run [PHP](https://php.net) code in Node.js in various ways:
 
-## Usage
+- Run PHP scripts.
+- Run PHP scripts and pass them JSON data from Node.js.
+- Use PHP as a view engine (templating system) for [Express framework](https://expressjs.com) applications.
 
-First declare `php` as a dependency in your app.
+To use this module, you must have PHP installed and in your PATH.
 
-Then set PHP as a view engine in your Express app:
+This module was built and is maintained by the [Roosevelt web framework](https://github.com/rooseveltframework/roosevelt) [team](https://github.com/orgs/rooseveltframework/people), but it can be used independently of Roosevelt as well.
+
+## Run a PHP script in Node.js
+
+```javascript
+const php = require('php')
+const output = await php.run('some_php_script.php')
+```
+
+## Run a PHP script in Node.js and pass it data
+
+```javascript
+const php = require('php')
+const output = await php.runWithData('some_php_script.php', { hello: 'world' })
+```
+
+Then, assuming your `some_php_script.php` file looks like this:
+
+```php
+<p><?=$hello?></p>
+```
+
+The output will be:
+
+```html
+<p>world</p>
+```
+
+## Use with Express
 
 ```js
 const express = require('express')
 const app = express()
 const php = require('php')
 
-// setup php templating engine
+// setup PHP templating engine
 app.set('views', path.join(__dirname, 'templates'))
-app.set('view engine', 'php')
+app.set('view engine', 'php') // set PHP as a view engine in your Express app
 app.engine('php', php.__express)
 
 // define a route
@@ -35,17 +65,15 @@ Then, assuming your `templates/index.php` looks like this:
 <p><?=$hello?></p>
 ```
 
-The ouptut will be:
+The output will be:
 
 ```html
 <p>world</p>
 ```
 
-Note: This module presumes that the system you run this on has PHP installed and that it's in your PATH.
-
 ## Configuration
 
-As shown in the above example, this module will register values from the Express model as global variables in your PHP script by default. You can disable this behavior if desired two ways:
+As shown in the above examples, this module will register values from the data model you pass to the PHP script as global variables in your PHP script by default when you use PHP as an Express view engine or when you call `runWithData`. You can disable this behavior if desired in the following ways:
 
 Disable registering globally:
 
@@ -55,7 +83,7 @@ php.disableRegisterGlobalModel()
 // can be reenabled by calling php.enableRegisterGlobalModel()
 ```
 
-Disable registering on a per route basis:
+Disable registering on a per render basis in Express:
 
 ```js
 app.get('/', (req, res) => {
@@ -65,3 +93,13 @@ app.get('/', (req, res) => {
   })
 })
 ```
+
+Disable registering on a per render basis in `runWithData` (though if you're doing this, you probably should just use `php.run()` instead, as that method was written to use simpler logic that doesn't support passing data to PHP):
+
+```js
+const output = await php.runWithData('some_php_script.php', { 
+  _REGISTER_GLOBAL_MODEL: false,
+  hello: 'world'
+})
+```
+

eslint.config.js

@@ -0,0 +1,12 @@
+const ava = require('eslint-plugin-ava')
+
+module.exports = [
+  {
+    languageOptions: {
+      ecmaVersion: 'latest'
+    },
+    plugins: {
+      ava
+    }
+  }
+]

index.js

@@ -1,25 +1,48 @@
-const circular = require('circular')
 const path = require('path')
+const { execSync } = require('child_process')
 const settings = {}
 settings.disableRegisterGlobalModel = false
 
-async function render (template, model, callback) {
-  const { execa } = await import('execa')
+function run (script) {
+  try {
+    const stdout = execSync(`php ${path.join(__dirname, script)}`)
+    return stdout.toString()
+  } catch (err) {
+    throw new Error(`PHP process exited with code ${err.status}`)
+  }
+}
+
+function runWithData (template, model) {
+  if (!model) model = {}
   model._TEMPLATE = template
-  if (typeof model._REGISTER_GLOBAL_MODEL === 'undefined') { // if not overridden by the model
-    // then source the setting from the global settings
+  if (typeof model._REGISTER_GLOBAL_MODEL === 'undefined') {
     if (settings.disableRegisterGlobalModel) {
       model._REGISTER_GLOBAL_MODEL = false
     } else {
       model._REGISTER_GLOBAL_MODEL = true
     }
   }
-  model._REGISTER_GLOBAL_MODEL = !!model._REGISTER_GLOBAL_MODEL // force a boolean
-  model._VIEWS_PATH = model.settings.views // pass views path to php
-  const jsonModel = JSON.stringify(model, circular()) // stringify with circular references stripped
-  const { stdout } = await execa('php', [path.join(__dirname, '/loader.php')], { input: jsonModel }) // e.g. php loader.php <<< '["array entry", "another", "etc"]'
-  const renderedTemplate = stdout
-  callback(null, renderedTemplate)
+  model._REGISTER_GLOBAL_MODEL = !!model._REGISTER_GLOBAL_MODEL
+  model._VIEWS_PATH = model?.settings?.views || './'
+  const jsonModel = JSON.stringify(model, circular())
+
+  try {
+    const stdout = execSync(`php ${path.join(__dirname, '/loader.php')}`, {
+      input: jsonModel
+    })
+    return stdout.toString()
+  } catch (err) {
+    throw new Error(`PHP process exited with code ${err.status}`)
+  }
+}
+
+function __express (template, model, callback) {
+  try {
+    const stdout = runWithData(template, model)
+    callback(null, stdout)
+  } catch (err) {
+    callback(err)
+  }
 }
 
 function disableRegisterGlobalModel () {
@@ -30,6 +53,27 @@ function enableRegisterGlobalModel () {
   settings.disableRegisterGlobalModel = false
 }
 
-module.exports.__express = render
+function circular (ref, methods) {
+  ref = ref || '[Circular]'
+  const seen = []
+  return function (key, val) {
+    if (typeof val === 'function' && methods) {
+      val = val.toString()
+    }
+    if (!val || typeof (val) !== 'object') {
+      return val
+    }
+    if (~seen.indexOf(val)) {
+      if (typeof ref === 'function') return ref(val)
+      return ref
+    }
+    seen.push(val)
+    return val
+  }
+}
+
+module.exports.run = run
+module.exports.runWithData = runWithData
+module.exports.__express = __express
 module.exports.disableRegisterGlobalModel = disableRegisterGlobalModel
 module.exports.enableRegisterGlobalModel = enableRegisterGlobalModel