PHP test question summary (with reference answers)_PHP tutorial

1 The predecessor of JavaScript scripting language is B

A.Basic

B.Live Script

C.Oak

D.VBScript

2 Use CSS to decorate the text. If the text flashes, the value of text-decoration is D

A.none B.underline C.overline D.blink

3 The standard that XML is based on is C

A.HTML B.MIME C.SGML D.CGI

4 The tag title is placed between the tags B

A.html and html

B.head and head

C.body and body

D.head and body

5 The parameters for connecting images in the tag are: B

A. href B. src C. type D. align

6 The extension of the cascading style sheet file is: B

A html Bcss C xml D dib

7 Compared with previous versions, HTML4.0: C

A Added JavaScript support

B Added Flash technology

C Enhances the dynamics of web pages

D Added ActiveX technology

8 In HTML, the tag

 functions as B
<p>
A. Title mark B. Pre-typesetting mark C. Line transition mark D. Text effect mark </p>
<p>
</p>
<p>
9 The line break mark in HTML language is B</p>
<p>
A.html B. br C.title D. p</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
10 In HTML, the maximum value of x in the title font tag <hx> is C</hx></p>
<p>
A.4 B.5 C.6 D.1</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
11 Which of the following does not belong to the data definition language: A</p>
<p>
A. select</p>
<p>
B. create</p>
<p>
C. drop</p>
<p>
D. alter</p>
<p>
</p>
<p>
13 The correct return value of mysql_select_db is: C</p>
<p>
A. Returns 1 if enabled successfully, 0 if failed </p>
<p>
B. A connection identifier is returned if successfully opened, false</p> is returned if failed.
<p>
C. Return True if enabled successfully, False</p> if failed.
<p>
D. Chengshi returns True when enabled, and returns an error number </p> if failed.
<p>
</p>
<p>
</p>
<p>
</p>
<p>
14 Look at the code. Which connection ID will be closed by the database close command? B</p>
<p>
</p>
<p>
$link1 =mysql_connect("localhost","root","");</p>
<p>
$link2 =mysql_connect("localhost","root","");</p>
<p>
mysql_close();</p>
<p>
?></p>
<p>
</p>
<p>
A. $link1</p>
<p>
</p>
<p>
B. $link2</p>
<p>
</p>
<p>
C. Close all </p>
<p>
</p>
<p>
D. Report an error</p>
<p>
</p>
<p>
</p>
<p>
15 Which operation does mysql_affected_rows() have no effect on? A</p>
<p>
A. select</p>
<p>
B. delete</p>
<p>
C. update</p>
<p>
D. insert</p>
<p>
</p>
<p>
16 In the mysql_data_seek (query result pointer, data record location) function, what is the starting value of the data record location? D</p>
<p>
A. 1</p>
<p>
B. 2</p>
<p>
C. 3</p>
<p>
D. 0</p>
<p>
</p>
<p>
17 The function to obtain the total number of records in the result set of the search statement is: C</p>
<p>
</p>
<p>
A. mysql_fetch_row</p>
<p>
</p>
<p>
B. mysql_rowid</p>
<p>
</p>
<p>
C. mysql_num_rows</p>
<p>
</p>
<p>
D. mysql_fetch_array</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
18 The correct statement about mysql_pconnect is: D</p>
<p>
</p>
<p>
A. Multiple connections to the database</p>
<p>
</p>
<p>
B. Same function as mysql_connect</p>
<p>
</p>
<p>
C. Same function as @mysql_connect</p>
<p>
</p>
<p>
D. Establish a persistent connection with the database</p>
<p>
</p>
<p>
</p>
<p>
19 If you want to obtain the running status of the mysql database system, what function should be used? C</p>
<p>
</p>
<p>
A. mysql_ping</p>
<p>
</p>
<p>
B. mysql_status</p>
<p>
</p>
<p>
C. mysql_stat</p>
<p>
</p>
<p>
D. mysql_info</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
20 The function of mysql_insert_id() function is: B</p>
<p>
A. Check the ID number when inserting the record next time</p>
<p>
B. View the automatically growing ID value just inserted </p>
<p>
C. Check how many insert operations have been performed in total</p>
<p>
D. Check how many records there are </p>
<p>
</p>
<p>
</p>
<p>
21 The correct function of the mysql_ping() function and the type of return value is: D</p>
<p>
</p>
<p>
A. Check the status of the database system and return an integer value </p>
<p>
</p>
<p>
B. Check the status of the database system, the return value is Boolean </p>
<p>
</p><p>
C. Check whether the connection to the server is normal and return an integer value </p>
<p>
</p>
<p>
D. Check whether the connection to the server is normal, the return value is Boolean </p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
22 There is an existing cart program (cart.inc) which contains a method for adding items (add_item), </p>
<p>
The following option can be used correctly add_item A</p>
<p>
</p>
<p>
<?php </p>
</p><p>
</p>
<p>
classCart {</p>
<p>
</p>
<p>
              var$items;</p>
<p>
</p>
<p>
functionadd_item ($artnr, $num) {</p>
<p>
</p>
<p>
$this-> items[$artnr] += $num;</p>
<p>
</p>
<p>
              }</p>
<p>
</p>
<p>
}</p>
<p>
</p>
<p>
?></p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
A. <?php </p>
</p><p>
</p>
<p>
​​ require("cart.inc");</p>
<p>
</p>
<p>
$cart = new Cart;</p>
<p>
</p>
<p>
$cart -> add_item("10", 1);</p>
<p>
</p>
<p>
?></p>
<p>
</p>
<p>
B.<?php </p>
</p><p>
</p>
<p>
        require(cart.inc);</p>
<p>
</p>
<p>
        $cart= new Cart</p>
<p>
</p>
<p>
$cart-> add_item ("10", 1)</p>
<p>
</p>
<p>
?></p>
<p>
</p>
<p>
C.<?php </p>
</p><p>
</p>
<p>
        require("cart.inc");</p>
<p>
</p>
<p>
        $cart= new Cart();</p>
<p>
</p>
<p>
$cart-> add_item ("10", 1);</p>
<p>
</p>
<p>
?></p>
<p>
</p>
<p>
D.<?php </p>
</p><p>
</p>
<p>
        include("cart.inc");</p>
<p>
</p>
<p>
        $cart= new Cart();</p>
<p>
</p>
<p>
$cart-> add_item ("10", 1);</p>
<p>
</p>
<p>
?></p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
23 The correct statement about mysql_db_query and mysql_query is: C</p>
<p>
</p>
<p>
A. The return value of mysql_db_query and mysql_query after executing the sql statement is the same. The resource number is returned successfully, and FALSE</p> is returned on failure.
<p>
</p>
<p>
B. You cannot use the mysql_query function to temporarily execute sql statements on another database, but mysql_db_query can </p>
<p>
</p>
<p>
C. mysql_db_query will not switch back to the database it was previously connected to</p>
<p>
</p>
<p>
D.mysql_query is functionally equivalent to mysql_select_db() +mysql_db_query()</p>
<p>
</p>
<p>
</p>
<p>
24 The following code execution result A</p>
<p>
</p>
<p>
<?php </p>
</p><p>
</p>
<p>
mysql_connect("localhost","root","")</p>
<p>
</p>
<p>
$result = mysql_query("select id,name from tb1");</p>
<p>
</p>
<p>
while($row =mysql_fetch_array($result,MYSQL_ASSOC))</p>
<p>
</p>
<p>
{echo "ID:" . $row[0] ."Name:" . $row[];}</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
?></p>
<p>
</p>
<p>
A. Report an error</p>
<p>
</p>
<p>
B. Only print the first record </p>
<p>
</p>
<p>
C. Loop and line feed to print all records </p>
<p>
</p>
<p>
D. No results</p>
<p>
</p>
<p>
</p>
<p>
25. The difference between mysql_connect() and @mysql_connect() is ( ) B</p>
<p>
A @mysql_connect() will not ignore errors and display errors to the client </p>
<p>
B mysql_connect() will not ignore errors and display errors to the client </p>
<p>
C No difference</p>
<p>
D Two functions with different functions</p>
<p>
</p>
<p>
26. The number of executions of the statement for($k=0;$k=1;$k++); and the statement for($k=0;$k==1;$k++); are respectively: A</p>
<p>
A infinite sum 0</p>
<p>
B 0 and infinity </p>
<p>
C is infinite</p>
<p>
D are all 0</p>
<p>
</p>
<p>
27． The method to read the form element value passed by the post method is: B</p>
<p>
A $_post["name"]</p>
<p>
B $_POST["name"]</p>
<p>
C $post["name"]</p>
<p>
D $POST["name"]</p>
<p>
</p>
<p>
28. In php operators, the priorities from high to low are ( ) D</p>
<p>
A relational operators, logical operators, arithmetic operators </p>
<p>
B arithmetic operators, relational operators, logical operators </p>
<p>
C logical operators, arithmetic operators, relational operators </p><p>
D relational operators, arithmetic operators, logical operators </p>
<p>
</p>
<p>
29. The value of the cookie is stored in () C</p>
<p>
A in hard drive </p>
<p>
B in program</p>
<p>
C client</p>
<p>
D Server side</p>
<p>
</p>
<p>
30. To check the data type of a variable, use the function ( ) B</p>
<p>
A type()</p>
<p>
B gettype()</p>
<p>
C GetType()</p>
<p>
D Type()</p>
<p>
</p>
<p>
31. To compare strings, press ( ) to compare. B</p>
<p>
A Pinyin order</p>
<p>
B ASCII code value</p>
<p>
C Random</p>
<p>
D sequence</p>
<p>
</p>
<p>
32. The value of the type attribute of the check box is ( ) A</p>
<p>
A checkbox</p>
<p>
B radio</p>
<p>
C select</p>
<p>
D check</p>
<p>
</p>
<p>
33. The value of the SESSION session is stored in ( )D</p>
<p>
A on hard drive </p>
<p>
B in web page </p>
<p>
C client</p>
<p>
D Server side</p>
<p>
</p>
<p>
34. If you want to get the latest query information, which function should be used ( ) A</p>
<p>
A mysql_info</p>
<p>
B mysql_stat</p>
<p>
C mysql_insert_id( )</p>
<p>
D mysql_free_result</p>
<p>
</p>
<p>
35． To view the value of a structure type variable, you can use the function ( ) B</p>
<p>
A Print( )</p>
<p>
B print( )</p>
<p>
C Print_r()</p>
<p>
D print_r( )</p>
<p>
</p>
<p>
36. Which variable array in PHP always contains all cookie data sent by the total client ( ) B</p>
<p>
A $_COOKIE</p>
<p>
B $_COOKIES</p>
<p>
C $_GETCOOKIE</p>
<p>
D $_GETCOOKIES</p>
<p>
</p>
<p>
37. Which of the following statements is wrong ( ) B</p>
<p>
A gettype() is used to check the data type</p>
<p>
B The variable that has not been assigned a value is 0</p>
<p>
C unset() is considered NULL</p>
<p>
D The most important thing about double-quoted strings is that the variable names will be replaced by variable values ​​</p>
<p>
</p>
<p>
38． The function of strtolower() function is ( )A</p>
<p>
A Converts the given string to all lowercase letters </p>
<p>
B Convert the given string to all uppercase letters </p>
<p>
C Convert the first letter of the given string to lowercase letters </p>
<p>
D Convert the first letter of the given string to uppercase letters </p>
<p>
</p>
<p>
39. In HTML, the "value" of a table cell is stored in the ( ) tag B</p>
<p>
A 〈body></p>
<p>
B 〈td></p>
<p>
C 〈tr></p>
<p>
D 〈table></p>
<p>
40． The function that converts a value or variable to character type is ( ) B</p>
<p>
A intval( )</p>
<p>
B strval( )</p>
<p>
C str</p>
<p>
D valint( )</p>
<p>
</p>
<p>
41． The concatenation operator of strings in php is ( )D</p>
<p>
A -</p>
<p>
B +</p>
<p>
C&</p>
<p>
D.</p>
<p>
</p>
<p>
42. Functions not supported by php functions are: C</p>
<p>
A variable number of parameters</p>
<p>
B Pass parameters by reference</p>
<p>
C Pass parameters via pointer</p>
<p>
D implements recursive functions</p>
<p>
</p>
<p>
43. The type attribute value of the file box is ( ) A</p>
<p>
A text</p>
<p>
B hidden</p>
<p>
C textarea</p>
<p>
D checkbox</p>
<p>
</p>
<p>
</p>
<p>
44. The function of operator "^" is ( ) C</p>
<p>
A is invalid</p>
<p>
B power</p>
<p>
C bit is not</p>
<p>
D bit XOR</p>
<p>
</p>
<p>
</p>
<p>
45． In custom functions, the keyword for returning function values ​​is ( )C</p>
<p>
A returns</p>
<p>
B close</p>
<p>
C return</p>
<p>
D back</p>
<p>
</p>
<p>
46． To check whether a constant is defined, you can use the function ( ) C</p>
<p>
A defined( )</p>
<p>
B isdefin( )</p>
<p>
C isdefined( )</p>
<p>
D None</p>
<p>
</p>
<p>
47. The correct description of the function of mysql_select_db is ( ) D</p>
<p>
A Connect to database</p>
<p>
B Connect and select database</p>
<p>
C Connect and open the database </p>
<p>
D Select database</p>
<p>
48. In HTML, where should the title tag be placed? </p>
<p>
In the A body tag </p>
<p>
In the B head tag </p>
<p>
</p> in C script tag
<p>
</p> in D table tag
<p>
49． Use the ( ) function to find the size of the array A</p>
<p>
A count( )</p>
<p>
B conut( )</p>
<p>
C $_COUNT["name"]</p>
<p>
D $_CONUT["name"]</p>
<p>
</p>
<p>
50. You can use the () function to delete data from the head of the queue array. A</p>
<p>
A array_push()</p>
<p>
B array_pop()</p>
<p>
C array_shift()</p>
<p>
D array_unshift()</p>
<p>
</p>
<p>
51． To embed javaScript in html, the tag that should be used is ( ) A</p>
<p>
A 〈script language="javascript"></p>
<p>
B 〈head> 〈/head></p>
<p>
C 〈body> 〈/body></p>
<p>
D 〈!--....//..></p>
<p>
</p>
<p>
52． The following code runs the result ( ) D</p>
<p>
$A=array("Monday","Tuesday",3=>"Wednesday");</p>
<p>
echo $A[2];</p>
<p>
A Monday</p>
<p>
B Tuesday</p>
<p>
C Wednesday</p>
<p>
D not shown </p>
<p>
53． The function to create a new array is ( ) A</p>
<p>
A array</p>
<p>
B next</p>
<p>
C count</p>
<p>
D reset</p>
<p>
54. The following incorrect variable name is ( ) B</p>
<p>
A $_test</p>
<p>
B $2abc</p>
<p>
C $Var</p>
<p>
D $printr</p>
<p>
</p>
<p>
55． The method to read the form element value passed by the get method is: A</p>
<p>
A $_GET["name"]</p><p>
B $get["name"]</p>
<p>
C $GEG["name"]</p>
<p>
D $_get["name"]</p>
<p>
56. The meaning of function vat_dump is ( ) C</p>
<p>
A defines array</p>
<p>
B traverse array</p>
<p>
C Output variable-related information</p>
<p>
D recursive array</p>
<p>
57. The function of strtoupper() function is: A</p>
<p>
A Converts the given string to all uppercase letters. </p>
<p>
B Converts the given string to all lowercase letters. </p>
<p>
C Converts the first letter of the given string to uppercase letters. </p>
<p>
D Converts the first letter of the given string to lowercase letters. </p>
<p>
58. The result of running the following code is ( ) B</p>
<p>
if($i="")</p>
<p>
{echo "a";}</p>
<p>
else</p>
<p>
{echo "b";</p>
<p>
}</p>
<p>
?></p>
<p>
A output a</p>
<p>
B output b</p>
<p>
C Insufficient conditions to determine</p>
<p>
D Running error </p>
<p>
59. In the str_replace(1,2,3) function, the name represented by 1 2 3 is ( ) B</p>
<p>
A "replacement string", "replaced string", "source string" </p>
<p>
B "replaced string", "replaced string", "source string" </p>
<p>
C "source string", "replacement string", "replaced string"</p>
<p>
D "source string", "replaced string", "replacement string" </p>
<p>
60. When browsing the web, what part of the HTML do you see? C</p>
<p>
A title</p>
<p>
B table</p>
<p>
C body</p>
<p>
D head</p>
<p>
61. The function of operator "%" is ( ) C</p>
<p>
A is invalid</p>
<p>
B Rounding</p>
<p>
C Take remainder</p>
<p>
D except </p>
<p>
62. The data type returned by the file() function is () B</p>
<p>
A array</p>
<p>
B string</p>
<p>
C integer </p>
<p>
D Depends on the document</p>
<p>
</p>
<p>
63. Assume $a=5, and $a+=2, then the value of $a is C</p>
<p>
A. 5 B. 6 C. 7 D. 8</p>
<p>
</p>
<p>
</p>
<p>
64. In the following description about MYSQL, the wrong one is D</p>
<p>
A. MYSQL is a truly multi-threaded, single-user database system</p>
<p>
B. MYSQL truly supports multiple platforms </p>
<p>
C. MYSQL fully supports ODBC</p>
<p>
D. MYSQL can mix tables from different databases in one operation</p>
<p>
</p>
<p>
</p>
<p>
65. The comparison operator in PHP is B</p>
<p>
A. = B.! C. = = D. &</p>
<p>
</p>
<p>
66. The way to define activity variables in PHP is B</p>
<p>
</p>
<p>
A. VAR B. $ C. $$ D.&</p>
<p>
67. PHP expression $foo=1+”bob3”, then the value of $foo is A</p>
<p>
</p>
<p>
A.1
</p>
68. PHP’s bitwise operators do not include D<p>
</p>
A.& B. | C. ~ D. !<p>
</p>
<p>
</p>
69. The correct statement about PHP variables is D<p>
</p>
A. PHP is a strongly typed language<p>
</p>
B. When declaring PHP variables, you need to specify the type of the variable <p>
</p>
C. The character used in front of the variable name when declaring PHP variables is "&"<p>
</p>
D. When a PHP variable is used, the context will automatically determine the type of the variable <p>
</p>
<p>
</p>
<p>
</p>
70. The delimiter symbol used when embedding HTML documents in PHP is D<p>
</p>
A. Start with "<?PHP " and end with "?>"<p>
</p>
B. Start with "- -" and end with "- -?>"<p>
</p>
C. Start with ""<p>
</p>
D. Start with "<cgi and end with>"<p>
</p>
<p>
</p>
71. In PHP syntax, assuming that $a=”hello” and $b=”china” are known, how to operate C<p> to get the string of “hello china”
</p>
A. $a+$b B. $a-$b C. $a.$b D. $a+=$b<p>
</p>
72. To configure the PHP environment, just modify A<p>
</p>
A. php.ini B. http.conf C. php.sys D. php.exe<p>
</p>
<p>
</p>
73. Among the following commands, the one that is not an output command of PHP is D<p>
</p>
A. echo B. printf() C. print D. write<p>
</p>
74. The way to define constants in PHP is C<p>
</p>
A. VAR B. dim C. define() D. undefined()<p>
</p>
<p>
</p>
<p>
</p>
75. There are the following PHP statement segments <p></p>
<p>
                                                                         
</p>
If ($a) <p>
</p>
                                                print “true”;
<p>
           else</p>
<p>
                                                                                                   print “false”;</p>
<p>
           ?></p>
<p>
To output "false", $a should be D</p>
<p>
A. 10 B. –3 C. “true” D. “0”</p>
<p>
</p>
<p>
</p>
<p>
76. It is known that $g=14, then the PHP expression $h=$g+=10, the result after operation is A</p>
<p>
A. $h=$g=24 B. $h=10,$g=24 C. $h=10.$g=14 D. $h=24,$g=10</p>
<p>
</p>
<p>
</p>
<p>
77. The operator used to call a method or attribute of an object in PHP is B</p>
<p>
A. =>
</p>
78. Suppose $a=5, there is $b=($a--), then $b is B<p>
</p>
A. 4 B. 5 C, 6 D. 0<p>
</p>
<p>
</p>
79. The purpose of the mark <br> is B<p>
</p>
A. Segmentation command B. Line feed command C. End command D. Print command <p>
</p>
<p>
</p>
80. The function used to delete the current directory in PHP is: D<p>
</p>
A． chdir B. cd C. opendir D. rmdir<p>
</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
</p>
<p>
</p>
The second block, programming questions (10 points for each question, totaling 20 points) <p>
</p>
1. Use PHP to implement a user login program. The user table structure in database TEST is as follows: <p>
</p>
user(userid char(8),password char(6))<p>
</p>
<p>
</p>
//The pseudo code is as follows<p>
</p>
$link=mysql_connect("$dbhost","$dbusername","$dbpassword");//Connect to the database<p>
</p>
Mysql_select_db("$dbname");<p>
</p>
//Write sql statement<p>
</p>
$sql="select ...";<p>
</p>
$resource=mysql_query($sql,$link);<p>
</p>
if(mysql_fetch_row($resource)){<p>
</p>
echo "Congratulations on your successful login";<p>
</p>
}else{<p>
</p>
echo "This user does not exist";<p>
</p>
}<p>
</p>
<p>
</p>
<p>
</p>
2. In MYSQL, the contents of the student table in the database "study" are as follows: <p>
</p>
id name sex<p>
</p>
9701 Wang Male<p>
</p>
9702 Zhang male<p>
</p>
9703 li female<p>
</p>
The parameters for connecting to the database server are: ("localhost", "root", "1234") <p>
</p>
Please use PHP language to write a program to delete a data record with ID 9701 <p>
</p>
<?php <p>

$link=mysql_connect("localhost","root","1234");//Connect to the database<p>
</p>
Mysql_select_db("study");<p>
</p>
//Write sql statement<p>
</p>
$sql="delete from student where id=9701";<p>
</p>
$boolean=mysql_query($sql,$link);<p>
</p>
if($boolean){<p>
</p>
echo "Delete successfully";<p>
</p>
}else{<p>
</p>
echo "Deletion failed";<p>
</p>
}<p>
</p>
?><p>
</p>
<p>
</p>
<p>
</p>
<p>
</p>
4. Write the results of running the following program and write down the general process of running it (10 points) <p>
</p>
<p>
</p>
class test{<p>
</p>
var $a,$b;<p>
</p>
function test($a,$b){<p>
</p>
$this->a=$a;<p>
</p>
$this->b=$b;<p>
</p>
}<p>
</p>
function getA(){<p>
</p>
Return $this->a;<p>
</p>
}<p>
</p>
function getB(){<p>
</p>
Return $this->b;<p>
</p>
}<p>
</p>
function xprint(){<p>
</p>
echo "a=".$this->a." b=".$this->b;<p>
</p>
}<p>
</p>
};<p>
</p>
<p>
</p>
class test1 extends test{<p>
</p>
var $c,$d;<p>
</p>
function test1($a,$b,$c,$d){<p>
</p>
$this->a=$a;<p>
</p>
$this->b=$b;<p>
</p>
$this->c=$c;<p></p>
<p>
$this->d=$d;</p>
<p>
}</p>
<p>
</p>
<p>
function getC(){</p>
<p>
Return $this->c;</p>
<p>
}</p>
<p>
function getD(){</p>
<p>
Return $this->d;</p>
<p>
}</p>
<p>
</p>
<p>
function xprint(){</p>
<p>
echo "a=".$this->a." b=".$this->b." c=".$this->c." d=".$this->d;</p>
<p>
}</p>
<p>
};</p>
<p>
$x=new test(0,0);</p>
<p>
$x->xprint();</p>
<p>
</p>
<p>
echo "<br>n";</p>
<p>
$y=new test1(1,2,3,4);</p>
<p>
$y->xprint();</p>
<p>
?></p>
<p>
</p>
<p>
</p>
<p>
a=0 b=0</p>
<p>
a=1 b=2 c=3 d=4</p>

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