Question

$thattime

我一直在＆＃34;迟到＆＃34;我的数据库甚至认为我改变了我的time值。我试图改变价值，仍然得到＆＃34;迟到＆＃34;在我的数据库上。我的logintime列上有s="abdhbdwba" maxLen=0 # sets the current highest length to 0 current=s[0] # sets the current letter to the first letter (this is the output string) longest=s[0] # sets the longest letter to the first letter(just for programming sake) # step through s indices for i in range(len(s) - 1): # goes over every letter in the string s except the last letter if s[i + 1] >= s[i]: # checks if the next letter in the string is greater than (in ascii code) the current letter current += s[i + 1] # if it is, adds the next letter to the current value if len(current) > maxLen: # if we've got to a sequence that is larger, just set the max length to the length of the sequance maxLen = len(current) # just lets the max length to the current length longest = current # just sets the longest to the current value else: current=s[i + 1] # just sets the current as is i += 1 # not sure why this is here? print ('Longest substring in alphabetical order is: ' + longest) # just prints it out类型。

有人可以帮助我吗？

感谢。

Answer 1

i have made a sample of your code to check,

<?php
$ThatTime ="18:50:00"; 
$time='18:49:00'; // use your db variable , i have used static for demo purpose
if (strtotime($time) > strtotime($ThatTime)) {
   // put your db query here
   echo 'Present';
}
if (strtotime($time) < strtotime($ThatTime)) {
   // put your second db query here
   echo 'Late';
}
if (strtotime($time) == strtotime($ThatTime)) {
   // put your second db query here
   echo 'Same Value';
}
?>

just place this code to check , if it echo present or late then put your query for update.

sorry , i forgot to add for equal to condition, make it as you like in equal to status. hope this helps.

时间比较PHP与SQL

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