[ACCEPTED]-PHP/(bad) exif data/warnings, what to do?-exif
You can use the @ operator to hide the warning without 4 using display_errors, i.e.
$exif = @exif_read_data(..);
That's better 3 than setting display_errors because it silences warnings/errors 2 on the exif read function only, and does 1 not hide other possible errors in your code.
Despite this is on old topic, it came for 12 me out of nowhere with new php 7.2: Bug #75785 Many errors from exif_read_data
I agree 11 with @maraspin, as any error is for a reason 10 and not dealing with it means having poor 9 performance (time, features).
MY GOAL: to get 'DateTimeOriginal' of 8 uploadable image (and not just creation_date 7 of tmp file - DateTime).
1. Normal using of exif_read_data:
$exif = exif_read_data(tmp/phpTBAlvX); or
$exif = exif_read_data($file->tempName, 'ANY_TAG'); or
$exif = exif_read_data($file->tempName, 'IFD0'); or
$exif = exif_read_data($file->tempName, 'EXIF');
PHP Warning – yii\base\ErrorException 6 exif_read_data(tmp/phpTBAlvX): Process 5 tag(x010D=DocumentNam): Illegal components(0)
2. Using the @ operator to hide the warning:
$exif = @exif_read_data(tmp/phpTBAlvX);
RESULT: $exif 4 as array with 20 arguments, but no 'DateTimeOriginal' in 3 it
Array (
[FileName] => phphT9mZy
[FileDateTime] => 1529171254
...
[SectionsFound] => ANY_TAG, IFD0, EXIF
[COMPUTED] => Array
(
[html] => width="3968" height="2976"
[Height] => 2976
[Width] => 3968
...
)
[ImageWidth] => 3968
[ImageLength] => 2976
[BitsPerSample] => Array()
[ImageDescription] => cof
[Make] => HUAWEI
...
[DateTime] => 2018:06:14 12:00:38
[YCbCrPositioning] => 1
)
3. Ended with solution:
$img = new \Imagick(tmp/phpTBAlvX);
$allProp = $img->getImageProperties();
$exifProp = $img->getImageProperties("exif:*");
RESULT: $allProp as array with 70 arguments 2 with 'DateTimeOriginal'
Array (
[date:create] => 2018-06-16T21:15:24+03:00
[date:modify] => 2018-06-16T21:15:24+03:00
[exif:ApertureValue] => 227/100
[exif:BitsPerSample] => 8, 8, 8
...
[exif:DateTimeOriginal] => 2018:06:14 12:00:38
[jpeg:colorspace] => 2
[jpeg:sampling-factor] => 2x2,1x1,1x1
)
RESULT: $exifProp 1 as array with 66 arguments with 'DateTimeOriginal'
Array (
[exif:ApertureValue] => 227/100
[exif:BitsPerSample] => 8, 8, 8
...
[exif:DateTimeOriginal] => 2018:06:14 12:00:38
)
MY DECISION:
- never use @ for suppressing any warning or code
- use The Imagick class for getting any tag of an image
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