I’m working in new WordPress plugin, but I need help with one regular expression.
I have this
a:6:{s:5:"width";s:4:"3000";s:6:"height";s:4:"2100";s:14:"hwstring_small";s:23:"height=\'89\' width=\'128\'";s:4:"file";s:25:"2012/02/sopa_nicearma.jpg";s:5:"sizes";a:3:{s:9:"thumbnail";a:3:{s:4:"file";s:23:"sopa_nicearma-15x10.jpg";s:5:"width";s:2:"15";s:6:"height";s:2:"10";}s:6:"medium";a:3:{s:4:"file";s:25:"sopa_nicearma-300x210.jpg";s:5:"width";s:3:"300";s:6:"height";s:3:"210";}s:5:"large";a:3:{s:4:"file";s:25:"sopa_nicearma-700x490.jpg";s:5:"width";s:3:"700";s:6:"height";s:3:"490";}
}s:10:"image_meta";a:10:{s:8:"aperture";s:1:"0";s:6:"credit";s:0:"";s:6:"camera";s:0:"";s:7:"caption";s:0:"";s:17:"created_timestamp";s:1:"0";s:9:"copyright";s:0:"";s:12:"focal_length";s:1:"0";s:3:"iso";s:1:"0";s:13:"shutter_speed";s:1:"0";s:5:"title";s:0:"";}}
but I want to delete the thumbnail subarray:
s:9:"thumbnail";a:3:{s:4:"file";s:23:"sopa_nicearma-15x10.jpg";s:5:"width";s:2:"15";s:6:"height";s:2:"10";}
to produce this in the end:
'a:6:{s:5:"width";s:4:"3000";s:6:"height";s:4:"2100";s:14:"hwstring_small";s:23:"height=\'89\' width=\'128\'";s:4:"file";s:25:"2012/02/sopa_nicearma.jpg";s:5:"sizes";a:3:{s:6:"medium";a:3:{s:4:"file";s:25:"sopa_nicearma-300x210.jpg";s:5:"width";s:3:"300";s:6:"height";s:3:"210";}s:5:"large";a:3:{s:4:"file";s:25:"sopa_nicearma-700x490.jpg";s:5:"width";s:3:"700";s:6:"height";s:3:"490";}
}s:10:"image_meta";a:10:{s:8:"aperture";s:1:"0";s:6:"credit";s:0:"";s:6:"camera";s:0:"";s:7:"caption";s:0:"";s:17:"created_timestamp";s:1:"0";s:9:"copyright";s:0:"";s:12:"focal_length";s:1:"0";s:3:"iso";s:1:"0";s:13:"shutter_speed";s:1:"0";s:5:"title";s:0:"";}}
pseudo code:
chain { chain "name image " chain}
I have this idea:
$var = preg_replace("(.+)\{(.+)(sopa_nicearma\-15x10\.jpg)(.+)\}/", "", $var);
but this doesn’t work as desired, I get this:
}s:10:"image_meta";a:10:{s:8:"aperture";s:1:"0";s:6:"credit";s:0:"";s:6:"camera";s:0:"";s:7:"caption";s:0:"";s:17:"created_timestamp";s:1:"0";s:9:"copyright";s:0:"";s:12:"focal_length";s:1:"0";s:3:"iso";s:1:"0";s:13:"shutter_speed";s:1:"0";s:5:"title";s:0:"";}}
You should not do this with regular expressions. These are serialized objects and if you edit anything in them manually which changes length of any contained string, you have to change the length parameter as well.
Instead you should unserialise data by doing
$data = unserialize($data);make changes and then serialise it again with$data = serialize($data);.