Online PHP editor | output for 3CNZC

@ 2017-07-10T11:32:48Z

<?php  
// without OB
echo 'before_ob' . PHP_EOL; 
ob_start(); // first level begins
// this line will be in $second
echo 'second_ob' . PHP_EOL; 
ob_start(); // second level begins
// these 2 lines will be in $first
echo 'third_ob' . PHP_EOL; 
echo '------' . PHP_EOL;  
$first = ob_get_clean() . 1; 
// this line will be in second
// but w/o previous 2 lines
echo '------' . PHP_EOL;  
$second = ob_get_clean() . 2; 
// this will output $first consisting of 2 lines.
// and $second without them.
var_dump($second,$first);

Output for 7.0.0 - 7.0.20, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: before_ob string(18) "second_ob ------ 2" string(17) "third_ob ------ 1"
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 before_ob string(18) "second_ob ------ 2" string(17) "third_ob ------ 1"

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