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Request #52525 Add a PRETTY_PRINT flag or argument to json_encode
Submitted: 2010-08-03 18:10 UTC Modified: 2010-09-16 15:54 UTC
Avg. Score:3.8 ± 1.0
Reproduced:7 of 7 (100.0%)
Same Version:0 (0.0%)
Same OS:2 (28.6%)
From: T dot J dot Hunt at open dot ac dot uk Assigned:
Status: Duplicate Package: JSON related
PHP Version: 5.2.14 OS: Any
Private report: No CVE-ID: None
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From: T dot J dot Hunt at open dot ac dot uk
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 [2010-08-03 18:10 UTC] T dot J dot Hunt at open dot ac dot uk
When trying to debug a large amount of JSON output that has been created using json_encode, it would be really nice to have an option to format the output beautifully, with some line-breaks and indenting, so the the generated JSON is easier to read.

Something a bit like the output of print_r.

Test script:
$bigarray = array();
for ($i = 0; $i < 100; $i++) {
    $bigarray['key' . $i] = 'value' . $i;
echo json_encode($bigarray, JSON_PRETTY_PRINT);
// Will error, because I made up the JSON_PRETTY_PRINT constant name.

Expected result:

Actual result:


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 [2010-09-16 15:54 UTC]
-Status: Open +Status: Duplicate
 [2010-09-16 15:54 UTC]
Duplicate of request #44331.
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