Pretty JSON

JSON can be formatted for humans while keeping the same data values.
readable output Pretty JSON adds whitespace, so examples can summarize it with line counts.
                            level
                            level = "debug" (default)level = "info"level = "warn"
                        

                            pretty_json.php
                        
Replay: real traced execution (multi-file project)

                            <?php
$level = "debug";
$json = json_encode(["level" => $level, "enabled" => true], JSON_PRETTY_PRINT);
$lines = substr_count($json, "\n") + 1;

echo "level=" . $level . "\n";
echo "lines=" . $lines . "\n";
<?php
$level = "info";
$json = json_encode(["level" => $level, "enabled" => true], JSON_PRETTY_PRINT);
$lines = substr_count($json, "\n") + 1;

echo "level=" . $level . "\n";
echo "lines=" . $lines . "\n";
<?php
$level = "warn";
$json = json_encode(["level" => $level, "enabled" => true], JSON_PRETTY_PRINT);
$lines = substr_count($json, "\n") + 1;

echo "level=" . $level . "\n";
echo "lines=" . $lines . "\n";

                        
1$level ← debug, $json ← {
    "level": "debug",
    "enabled": true
}1<?php2$level→ debug = "debug"; //@level="info", "warn"3$json→ {
    "level": "debug",
    "enabled": true
} = json_encode(["level" => $leveldebug, "enabled" => true], JSON_PRETTY_PRINT);4$lines→ 4 = substr_count($json{
    "level": "debug",
    "enabled": true
}, "\n") + 1;56echo "level=" . $leveldebug . "\n";7echo "lines=" . $lines4 . "\n";⋯outputlevel=debug
lines=4
1$level ← info, $json ← {
    "level": "info",
    "enabled": true
}1<?php2$level→ info = "info";3$json→ {
    "level": "info",
    "enabled": true
} = json_encode(["level" => $levelinfo, "enabled" => true], JSON_PRETTY_PRINT);4$lines→ 4 = substr_count($json{
    "level": "info",
    "enabled": true
}, "\n") + 1;56echo "level=" . $levelinfo . "\n";7echo "lines=" . $lines4 . "\n";⋯outputlevel=info
lines=4
1$level ← warn, $json ← {
    "level": "warn",
    "enabled": true
}1<?php2$level→ warn = "warn";3$json→ {
    "level": "warn",
    "enabled": true
} = json_encode(["level" => $levelwarn, "enabled" => true], JSON_PRETTY_PRINT);4$lines→ 4 = substr_count($json{
    "level": "warn",
    "enabled": true
}, "\n") + 1;56echo "level=" . $levelwarn . "\n";7echo "lines=" . $lines4 . "\n";⋯outputlevel=warn
lines=4