Reformats PHP errors and exceptions, for old versions of PHP which were insane and inconsistent in how they were sent to Apache's logs.

apache-time.sed

#!/bin/sed -urf

# Modify timestamp format.
s/^\[\w+ \w+ \w+ ([0-9:]{8})\.[0-9]+ \w+\]( \[[^]]+\]){3}( \w+)?/[\1]/

# Hold the first timestamp.
1{
	b hold
}

# Call :main manually to reset when last decision was made.
t main

{:main
	# Append a newline, followed by the old timestamp.
	G

	# If the timestamps match, remove both.
	s/^(.{11})(.*)\n(\1)$/\2/
		t newlines

	# If they don't match, use the new timestamp.
	s/^(.{11})(.*)\n(.{11})$/\1\2/
		b hold
}

# Hold the current timestamp.
{:hold
	h
	s/^(.{11}).*/\1/
	x
}

# Replace literal '\n's with actual newlines.
{:newlines
	s/\\n/\n/g
	s/\n#([0-9])/\n  \1./g
}

# Add whitespace to lines without a timestamp.
s/(^|\n)([^\[][^\n]*)/\1           \2/g