如何在PHP脚本之间传递变量？

    header(\'Location: otherScript.php?var1=val1&var2=val2\');

    // first script
    session_start(); 
    $_SESSION[\'varName\'] = \'varVal\';
    header(\'Location: second_script.php\'); // go to other

    // second script
    session_start(); 
    $myVar = $_SESSION[\'varName\'];

include

include_once

require

session_start(); // must be called before data is sent

$_SESSION[\'error_msg\'] = \'Invalid input\';

// redirect to b.php

<?php

session_start();

echo $_SESSION[\'error_msg\']; // outputs \"Invalid input\"

global $variable = \'something\';

// script1.php contains function \'add3\'
function add3( $value ) {
  return $value + 3;
}

// script2.php
include \"script1.php\";
echo \'Value is \'.add3(2); // Value is 5

tempnam()

memcached

redis

$_SESSION

extract()

<?php
$data = [
    \'title\'=>\'hello\',
    \'content\'=>\'hello world\'
];
extract($data);
require \'content.php\';

<?php 
echo $title;
echo $content;