Online PHP editor | output for lCvf3

@ 2017-07-26T13:11:55Z

<?php 
      //method 1
    $num = 1;
    echo "\n method 1: "; 
    echo $num =  (int) !$num;   
    echo $num =  (int) !$num;   

    //method 2
    $num = 1;
    echo "\n method 2: "; 
    echo  $num = array(1,0)[$num];
    echo  $num = array(1,0)[$num];

    //method 3
    $num = 1;
    echo "\n method 3: ";
    echo  $num = (int) ($num < 1);  
    echo  $num = (int) ($num < 1);  

    //method 4 
    $num = 1;
    echo "\n method 4: ";
    echo $num = (int)empty($num); 
    echo $num = (int)empty($num);  //method 4

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, 8.4.1 - 8.4.14, 8.5.0 - 8.5.1: method 1: 01 method 2: 01 method 3: 01 method 4: 01
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.

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