Hi Ely,
> I downloaded de lastest version of sourceforge php-java-bridge_5.2.0_j2ee.zip but I missed the
> extension module for php5 windows (a dll file). The one inside cgi directory of javabridge.war
> is about php4.
The dll (or java.so) is obsolete. We'll keep it, but you have to compile the C code yourself.
I have updated the FAQ:
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Do I have to require Java.inc in each of my scripts? Isn't that very slow?
In order to communicate with Java, a PHP "Java" class definition is needed. Here's a simple PHP
"Java" class definition which fits into one line:
<?php
// The following is the "Java" class definition, stripped down to fit into one line
// To use this sample start Java with: java -jar JavaBridge.jar INET:9267
// Or enable java.so or php_java.dll, which automatically start the above
// process Then type: php sample.php
//
class P {const Pc="<C v=\"%s\" p=\"I\">", PC="</C>"; const Pi="<I v=\"%d\" m=\"%s\" p=\"I\">",
PI="</I>"; const Ps="<S v=\"%s\"/>", Pl="<L v=\"%d\" p=\"%s\"/>", Po="<O v=\"%d\"/>"; private $c;
function str($s){fwrite($this->c, sprintf(self::Ps, $s));} function obj($s){fwrite($this->c,
sprintf(self::Po, $s->java));} function __construct(){$this->c=fsockopen("127.0.0.1",9267);}
function cBeg($s){fwrite($this->c, sprintf(self::Pc, $s));} function cEnd(){fwrite($this->c,
self::PC);} function iBeg($o, $m){fwrite($this->c, sprintf(self::Pi, $o, $m));} function
iEnd(){fwrite($this->c, self::PI);} function val($s){if(is_object($s))$this->obj($s);else
$this->str((string)$s);} function res(){$r=sscanf(fread($this->c, 8192),"%s v=\"%[^\"]\"");return
$r[1];}} class Java {var $java, $p; function __construct() {if(!func_num_args()) return;
$this->p=new P(); $ar=func_get_args(); $this->p->cBeg(array_shift($ar)); foreach($ar as $arg)
$this->p->val($arg); $this->p->cEnd(); $ar = sscanf($this->p->res(), "%d"); $this->java=$ar[0];}
function __call($meth, $args) {$this->p->iBeg($this->java, $meth); foreach($args as $arg)
$this->p->val($arg); $this->p->iEnd(); $proxy = new Java(); $ar = sscanf($this->p->res(), "%d");
$proxy->java=$ar[0]; $proxy->p=$this->p; return $proxy;} function toString() {$this->p->iBeg("",
"castToString"); $this->p->val($this); $this->p->iEnd(); return base64_decode($this->p->res());}}
// Test
$i1 = new Java("java.math.BigInteger", "1");
$i2 = new Java("java.math.BigInteger", "2");
$i3 = $i1->add($i2);
echo $i3->toString() . "\n";
?>
The above simple "Java" class assumes that some Java VM has been started on host "127.0.0.1", port
"9267". And it cannot handle values larger than 8192 bytes. Therefore the PHP/Java Bridge library
Java.inc should be used. Scripts should contain the statement
require_once("...java/Java.inc");
at the beginning of each script. PHP compiles and caches PHP scripts, the Java.inc library is
loaded only once.
--------------
Regards,
Jost Boekemeier
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