Undefined property: Plantilla::$mihtml [duplicate] - php

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Constructor in PHP
(2 answers)
Closed 14 days ago.
I have the following code in 7.4 it worked for me now in 8.1 it doesn't work for me...
I corrected it by replacing foreach but I still have errors of
Undefined property: Plantilla::$mihtml
help please
I hope you can help me I don't know how to solve this problem
<?php
class Plantilla{
function Plantilla($template_file){
$this->tpl_file =$template_file ;
}
function asigna_variables($vars){
$this->vars= (empty($this->vars)) ? $vars : $this->vars . $vars;
}
function muestra(){
$this->template_file = $this->tpl_file;
$this->mihtml = $this->template_file;
$this->mihtml = str_replace ("'", "\'", $this->mihtml);
$this->mihtml = preg_replace('#\{([a-z0-9\-_]*?)\}#is', "' . $\\1 . '", $this->mihtml);
reset ($this->vars);
foreach($this->vars as $key => $val) {
$$key = $val;
}
eval("\$this->mihtml = '$this->mihtml';");
reset ($this->vars);
foreach($this->vars as $key => $val)
{
unset($$key);
}
$this->mihtml=str_replace ("\'", "'", $this->mihtml);
return $this->mihtml;
//AQUI SI QUEREMOS USARDEFRENTE EN PARA MOSTTRAR SE DEBE CAMBIAR A ''ECHO'
}
}
$COD_RANDOM ='1234567899999999999999999999999999999999999';
$Contenido=new Plantilla('el codigo es {CODIGO_RANDOM}');//al Pasar como parametro Prueba, asumimos que en la carpeta plantillas existe un archivo de nombre Prueba.tpl
$Contenido->asigna_variables(array(
"CODIGO_RANDOM" => $COD_RANDOM //codigo generado
));
#$ContenidoString = $Contenido->muestra();//$ContenidoString contiene nuestra plantilla, ya con las variables asignadas, fácil no?
$mensajebody=$Contenido->muestra();
echo $mensajebody;
?> ```
espero me puedan ayudar por favor

Answer 1

You are giving $template when you create an $Contenido object.
new Plantilla('el codigo es {CODIGO_RANDOM}');
You mean it to be set as local property of class. But the construction function in PHP calls not by class name, but with special name __construct()
The code of class should start with the following
class Plantilla
{
function __construct($template_file) //<-- this function name changes
{
$this->tpl_file = $template_file;
}
}
Please, follow this manual: https://www.php.net/manual/en/language.oop5.decon.php