安装PHP4.3.5RC3.dev(Win32)+Apache 2.0.52(For Win32)和j2sdk 1.4 (For Win32)都不用说了，如果不会安装，请看相关手册。
在PHP配置文件php.ini中找到 " ;extension=php_java.dll " 这上行，并把前面的分号去掉;
再找到：
[Java]
;java.class.path =
;java.home =
;java.library =
;java.library.path =
改为:
java.class.path = "JAVA的CLASS_PATH;(将要放置自己的class文件的目录)d:\java_for_php"
java.home = "JAVA的JAVAHOME"
java.library = "JAVA的JAVAHOME\jre\bin\server\jvm.dll"
java.library.path = "PHP安装目录\extensions\"
修改好后，php.ini 文件必须放在Windows安装目录内，重新启动Apache。
在d:\java_for_php内新建一个PhpCallJava.java ，内容如下：
public class PhpCallJava {
public String testString;
public String test (String str) {
if (str.equals("")) {
return "This is a empty string!";
} else {
return str;
}
}
public String GetTestString () {
return "Your string is: " + testString;
}
}
编译PhpCallJava.java 生成PhpCallJava.class
新建一个PHP文件，内容如下：
<?php
$myjava = new Java("PhpCallJava");
echo "Test Result are <b>".$myjava->test("Hello JAVA, I m PHP.")."</b><br>\n";
$myjava->testString = "JAVA, I gave you a string.";
echo "You have set string is: <b>".$myjava->testString."</b><br>\n";
echo "My java method reports:<b>".$myjava->GetTestString ()."</b><br>\n";
?>
结果:
Test Result are Hello JAVA, I m PHP.
You have set string is: JAVA, I gave you a string.
My java method reports:Your string is: JAVA, I gave you a string.