3v4l.org

run code in 300+ PHP versions simultaneously

@ 2017-05-21T10:39:29Z

<?php

    class TemplateString {
        // Usage:
        // $t = new TemplateString("Your name is {{name}}");
        // $t->name = "John";
        // echo $t; // Your name is John
        
        private $template;
        private $parameters = [];
        public function __construct( $template, array $defaultparams = null) {
            $this->template = $template;
            if( $defaultparams) $this->parameters = $defaultparams;
        }
        public function __set($k,$v) {
            $this->parameters[$k] = $v;
        }
        public function __get($k) {
            if( array_key_exists($k,$this->parameters)) {
                return $this->parameters[$k];
            }
            return null;
        }
        public function __toString() {
            $words = $this->parameters;
            return preg_replace_callback("/\{\{(\w+)\}\}/",function($m) use ($words) {
                if( array_key_exists($m[1],$words)) return $words[$m[1]];
                return $m[0];
            },$this->template);
        }
    }
    
    $t = new TemplateString("Your name is {{name}}\n");
    $t->name = "John";
    echo $t;
    $t->name = "Bill";
    echo $t;
    
    // alternative:
    $t2 = clone $t;
    $t2->name = "Sam";
    echo $t.$t2;

Output for 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: Deprecated: TemplateString::__construct(): Implicitly marking parameter $defaultparams as nullable is deprecated, the explicit nullable type must be used instead in /in/vNhYl on line 11 Your name is John Your name is Bill Your name is Bill Your name is Sam
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28: Your name is John Your name is Bill Your name is Bill Your name is Sam

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192.03 ms | 411 KiB | 5 Q