Just a quick little utility script I wrote to make watching PHP error logs a tad easier:

Usage is

#tail -F /var/log/php/php_error.log | ~/bin/parsePHPErrors.py

Thanks to this Stackoverflow question, it even colorizes!

#!/usr/bin/python
import sys
import os
import re

input = os.fdopen(sys.stdin.fileno(),'r',100)
regex = re.compile("(.*?PHP (Warning|Error|Notice|):.*)")
line = input.readline()

class bcolors:
    HEADER = '\033[95m'
    OKBLUE = '\033[94m'
    OKGREEN = '\033[92m'    
    WARNING = '\033[93m'
    FAIL = '\033[91m'
    ENDC = '\033[0m'


myColor = bcolors.OKGREEN

while line:
    
    if regex.match(line) or line.find("TODO") > -1:
        
        isCorrect = True
        
        if line.find("Fatal error") > -1:
            myColor = bcolors.FAIL
            pass
        elif line.find("Error")  > -1:
            myColor = bcolors.FAIL
            #todo get console color code
            pass
        elif line.find("Warning")  > -1:
            myColor = bcolors.WARNING
            pass
        elif line.find("Notice")  > -1:
            myColor = bcolors.OKBLUE
            pass
        elif line.find("TODO") > -1:
            myColor = bcolors.OKBLUE
            pass
        
        if isCorrect:            
            print "#"*25, "@"*25, "#"*25
            print
    else:
        pass
        #myColor = bcolors.OKGREEN
        
        
    print myColor, line.strip(), bcolors.ENDC
    line = input.readline()

Output looks like:

######################### @@@@@@@@@@@@@@@@@@@@@@@@@ #########################

[28-Mar-2011 11:14:10] PHP Notice:  Undefined variable: sql in

basically breaking up individual error messages into visually easy to spot blocks