Share PHP Error tips explaining _php tutorial

Source: Internet
Author: User
Tags parse error php error
In the learning of PHP, often encountered a variety of error hints, today see this error hints and explanations feel very good, now turn around, for us to learn. Oh.....
1. notice:undefined variable: variable name in
Note: A variable that is not defined is used
2. Parse error:syntax error, unexpected t_else in
If () {
}else if () {
Echo $test;
Else {
Note: is if else if else syntax error
3. Parse error:syntax error, unexpected $end in D
Note: Usually curly braces do not match
4. Parse error:syntax error, unexpected t_string in
Note: Generally forget to write the end of the sentence semicolon
5, warning:invalid argument supplied for foreach () in
Note: The first parameter of a foreach must be an array
6, Warning:mysql_fetch_assoc (): supplied argument is not a valid MySQL result resource in
Note: This indicates that the previous execution of SQL return failure, the general may be a SQL statement error, such as analysis can not come out, just print out mysql_error (); Look at the exact place where it's wrong.
7, No Database selected
Note: There is generally no database connected
8, Warning:mysql_connect () [Function.mysql-connect]: Access denied for user ' root ' @ ' localhost ' (using Password:yes) in .... . On line 3
Access denied for user ' root ' @ ' localhost ' (using Password:yes)
Note: Database user name password is wrong
9, Unknown database ' cms07261′
Note: This database is not
10, Table ' cms0726.test ' doesn ' t exist
Note: The table does not exist
11. Unknown column ' abc ' in ' Field list '
Note: The field does not exist
12, Column count doesn ' t match value count at row 1
Note: The number of field values in the SQL statement is different than the number of field names
13. Warning:wrong parameter count for function name in
Note: The function is less than a few numbers
14, Fatal error:smarty error: [In message_list.html line]: syntax error: ' Foreach:item ' must is a variable name (Litera L string)
Note: Look at the line number, stating that after the item in foreach must be followed by a variable name, without $, is a string (note: There is no single double cited)
15, Fatal Error:smarty error: [in the message_list.html line]: syntax error:unrecognized tag:msg.message_id
Note: The variables in the template are missing before the $
Warning:smarty error:unable to read resource: ' message_list1.html ' in
Note: The template file cannot be found to see if the file name is incorrectly written or if it is stored in another directory.
17, Fatal Error:cannot redeclare get_sort1 () (previously declared in
Note: Functions have already been defined and cannot be redefined true techarticle in the learning of PHP, often encountered a variety of error hints, today see this error hints and explanations feel very good, now turn around, for us to learn. Oh..... 1. Notice:undef ...

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