Chapter 25. PHP
Overview
PHP is a widely-used general-purpose scripting language that is especially suited for Web development. The PHP support is part of the
camel-script module.
Adding the script module
To use PHP in your routes you need to add a dependency on
camel-script to your project as shown in Example 25.1, “Adding the camel-script dependency”.
Example 25.1. Adding the camel-script dependency
<!-- Maven POM File -->
...
<dependencies>
...
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-script</artifactId>
<version>${camel-version}</version>
</dependency>
...
</dependencies>Static import
To use the
php() static method in your application code, include the following import statement in your Java source files:
import static org.apache.camel.builder.camel.script.ScriptBuilder.*;
Built-in attributes
Table 25.1, “PHP attributes” lists the built-in attributes that are accessible when using PHP.
| Attribute | Type | Value |
|---|---|---|
context | org.apache.camel.CamelContext | The Camel Context |
exchange | org.apache.camel.Exchange | The current Exchange |
request | org.apache.camel.Message | The IN message |
response | org.apache.camel.Message | The OUT message |
properties | org.apache.camel.builder.script.PropertiesFunction | Function with a resolve method to make it easier to use the properties component inside scripts. |
The attributes all set at
ENGINE_SCOPE.
Example
Example 25.2, “Route using PHP” shows a route that uses PHP.
Example 25.2. Route using PHP
<camelContext>
<route>
<from uri="direct:start"/>
<choice>
<when>
<language language="php">strpos(request.headers.get('user'), 'admin')!== FALSE</language>
<to uri="seda:adminQueue"/>
</when>
<otherwise>
<to uri="seda:regularQueue"/>
</otherwise>
</choice>
</route>
</camelContext>Using the properties component
To access a property value from the properties component, invoke the
resolve method on the built-in properties attribute, as follows:
.setHeader("myHeader").php("properties.resolve(PropKey)")
Where PropKey is the key of the property you want to resolve, where the key value is of
String type.
For more details about the properties component, see Properties in the Apache Camel Component Reference Guide.
