Installation error

[maxulm]

Array and string offset access syntax with curly braces is no longer supported

/var/www/html/admin/modules/endpointman/lib/json.class.php

   /**
    * convert a string from one UTF-16 char to one UTF-8 char
    *
    * Normally should be handled by mb_convert_encoding, but
    * provides a slower PHP-only method for installations
    * that lack the multibye string extension.
    *
    * @param    string  $utf16  UTF-16 character
    * @return   string  UTF-8 character
    * @access   private
    */
    function utf162utf8($utf16)
    {
        // oh please oh please oh please oh please oh please
        if(function_exists('mb_convert_encoding')) {
            return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
        }

        $bytes = (ord($utf16{0}) << 8) | ord($utf16{1});

        switch(true) {
            case ((0x7F & $bytes) == $bytes):
                // this case should never be reached, because we are in ASCII range
                // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
                return chr(0x7F & $bytes);

            case (0x07FF & $bytes) == $bytes:
                // return a 2-byte UTF-8 character

[jcattan]

change this line : $bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
by this one : $bytes = (ord($utf16[0]) << 8) | ord($utf16[1]);

[maxulm]

Thanks for your fast reply @jcattan
I've modified all the arrays in the file, but now the installations stops here:

/var/www/html/admin/modules/endpointman/Endpointman.class.php

public $UPDATE_PATH;
public $MODULES_PATH;
public $LOCAL_PATH;
public $PHONE_MODULES_PATH;
public $PROVISIONER_BASE;


public function __construct($freepbx = null) {
    if ($freepbx == null) {
        throw new \Exception("Not given a FreePBX Object");
    }
    require_once('lib/json.class.php');
    require_once('lib/Config.class.php');
    require_once('lib/epm_system.class.php');
    require_once('lib/datetimezone.class.php');
    require_once('lib/epm_data_abstraction.class.php');
    //require_once("lib/RainTPL.class.php");

    $this->freepbx = $freepbx;
    $this->db = $freepbx->Database;
    $this->config = $freepbx->Config;
    $this->configmod = new Endpointman\Config();
    $this->system = new epm_system();
    $this->eda = new epm_data_abstraction($this->config, $this->configmod);


    $this->configmod->set('disable_epm', FALSE);
    $this->eda->global_cfg = $this->configmod->getall();

    //Generate empty array
    $this->error = array();
    $this->message = array();


    $this->configmod->set('tz', $this->config->get('PHPTIMEZONE'));
    date_default_timezone_set($this->configmod->get('tz'));

    $this->UPDATE_PATH = $this->configmod->get('update_server');
    $this->MODULES_PATH = $this->config->get('AMPWEBROOT') . '/admin/modules/';

Arguments
"Creation of dynamic property FreePBX\modules\Endpointman::$freepbx is deprecated"