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PHP MySQL - Interview Questions and Answers, Best Practice
Complete list of questions and answers about PHP MySQL. Get prepared for better interview.
Saturday, May 16, 2009
What’s the special meaning of __sleep and __wakeup?
__sleep returns the array of all the variables than need to be saved, while __wakeup retrieves them.
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a database name
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advantages and disadvantages?
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and
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and myi? What these files contain?
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and MySQL?
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and windows?
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Answer the questions with the following assumption
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Apache
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Are objects passed by value or by reference?
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but doesn’t for two-dimensional array of mine?
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but it keeps coming up with a different number
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Can we use include ("abc.php") two times in a php page "makeit.php"?
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Can we use include(abc.PHP) two times in a PHP page makeit.PHP”?
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CHECK IF A VARIABLE IS AN INTEGER IN JAVASCRIPT
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crc32() and sha1() crypto on PHP?
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do I get variable substitution inside the heredoc contents?
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ename varchar(10))?
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Explain about Type Juggling in php?
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Explain normalization concept?
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Explain the ternary conditional operator in PHP?
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For printing out strings
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German)?
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give the case where we can use GET and we can use POST methods?
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Give the syntax of GRANT commands?
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Give the syntax of REVOKE commands?
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height) of an image using php image functions?
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How can I embed a java programme in php file and what changes have to be done in php.ini file?
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How can I execute a PHP script using command line?
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How can I know that a variable is a number or not using a JavaScript?
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How can I load data from a text file into a table?
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How can I make a script that can be bilingual (supports English
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How can I retrieve values from one database server and store them in other database server using PHP?
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How can I set a cron and how can I execute it in Unix
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How can I use the COM components in php?
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How can increase the performance of MySQL select query?
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How can we change the data type of a column of a table?
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How can we change the name of a column of a table?
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How can we create a database using PHP and mysql?
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How can we destroy the cookie?
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How can we destroy the session
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How can we encrypt and decrypt a data present in a mysql table using mysql?
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How can we encrypt and decrypt a data presented in a table using MySQL?
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How can we encrypt the username and password using PHP?
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How can we extract string 'abc.com ' from a string http://info at abc.com using regular expression of php?
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How can we extract string "abc.com" from a string "mailto:info AT abc.com?subject=Feedback" using regular expression of PHP?
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How can we find the number of rows in a result set using PHP?
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How can we find the number of rows in a table using MySQL?
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How can we get second of the current time using date function?
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How can we get the properties (size
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How can we increase the execution time of a php script?
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How can we know that a session is started or not?
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How can we know the count/number of elements of an array?
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How can we know the number of days between two given dates using MySQL?
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How can we know the number of days between two given dates using PHP?
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How can we register the variables into a session?
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How can we repair a MySQL table?
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How can we send mail using JavaScript?
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How can we submit a form without a submit button?
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How can we submit form without a submit button?
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How can we submit from without a submit button?
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HOW CAN WE TAKE A BACKUP OF A MYSQL TABLE AND HOW CAN WE RESTORE IT?
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how can we unset the variable of a session?
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How come the code works
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How do I find out the number of parameters passed into function9. ?
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How do you call a constructor for a parent class?
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How do you define a constant?
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How do you pass a variable by value?
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How many values can the SET function of MySQL take?
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How many ways can we get the value of current session id?
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How many ways I can redirect a PHP page?
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How many ways we can give the output to a browser?
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How many ways we can pass the variable through the navigation between the pages?
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How many ways we can retrieve the date in result set of mysql using php?
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How many ways we can we find the current date using MySQL?
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How To Create a Table?
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How To Get the Uploaded File Information in the Receiving Script?
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How To Protect Special Characters in Query String?
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How To Read the Entire File into a Single String?
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How to reset/destroy a cookie
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How to set cookies?
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How to store the uploaded file to the final location?
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How To Turn On the Session Support?
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How To Write the FORM Tag Correctly for Uploading Files?
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I am trying to assign a variable the value of 0123
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I am writing an application in PHP that outputs a printable version of driving directions. It contains some long sentences
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If the variable $a is equal to 5 and variable $b is equal to character a
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If we login more than one browser windows at the same time with same user and after that we close one window
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IN HOW MANY WAYS WE CAN RETRIEVE DATA IN THE RESULT SET OF MYSQL USING PHP?
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include_once?
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indexes?
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Linux
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List out different arguments in PHP header function?
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myd
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MySQL
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mysql_fetch_object()
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mysql_fetch_row()?
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or a field name in MySQL?
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PHP
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Php) instead of combination of other software programs
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Please give a regular expression (preferably Perl/PREG style)
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print and printf. Explain the differences.
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servers and operating systems?
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So if md5() generates the most secure hash
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Steps for the payment gateway processing?
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the Browser often keeps this page in its cache.
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then is the session is exist to other windows or not? And if yes then why? If no then why?
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there are echo
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there.\nHow are you?\nThanks for visiting fyicenter’; print $str; ?gt;
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Tools used for drawing ER diagrams.
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triggers
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type
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Welcome to Free PHP - MySQL Questions and Answers Blog
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What are encryption functions in PHP?
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What are the advantages and disadvantages of CASCADE STYLE SHEETS?
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What are the advantages of stored procedures
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What are the current versions of Apache
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What are the difference between abstract class and interface?
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What are the differences between DROP a table and TRUNCATE a table?
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What are the differences between GET and POST methods in form submitting
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What are the differences between mysql_fetch_array()
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What are the differences between require and include
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What are the different functions in sorting an array?
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What are the different tables present in MySQL? Which type of table is generated when we are creating a table in the following syntax: create table employee(eno int(2)
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WHAT ARE THE DIFFERENT TYPES OF ERRORS IN PHP?
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What are the different ways to login to a remote server? Explain the means
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What are the features and advantages of OBJECT ORIENTED PROGRAMMING?
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What are the functions for IMAP?
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What are the MySQL database files stored in system ?
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What are the other commands to know the structure of a table using MySQL commands except EXPLAIN command?
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What are the reasons for selecting LAMP (Linux
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What changes I have to do in php.ini file for file uploading?
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What does a special set of tags do in PHP?
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What Is a Persistent Cookie?
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What Is a Session?
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What is maximum size of a database in mysql?
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What is meant by MIME?
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What is meant by nl2br()?
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What is meant by PEAR in php?
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What is meant by urlencode and urldecode?
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What is the default session time in php and how can I change it?
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What is the difference between $message and $$message?
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What is the difference between CHAR and VARCHAR data types?
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What is the difference between characters \023 and \x23?
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What is the difference between ereg_replace() and eregi_replace()?
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What is the difference between GROUP BY and ORDER BY in SQL?
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What is the difference between htmlentities() and htmlspecialchars()?
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What is the difference between mysql_fetch_object and mysql_fetch_array?
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What is the difference between PHP4 and PHP5?
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What is the difference between Reply-to and Return-path in the headers of a mail function?
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What is the difference between the functions unlink and unset?
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What is the functionality of MD5 function in PHP?
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What is the functionality of the function htmlentities?
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What is the functionality of the function strstr and stristr?
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WHAT IS THE FUNCTIONALITY OF THE FUNCTIONS STRSTR() AND STRISTR()?
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What is the maximum length of a table name
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What is the maximum size of a file that can be uploaded using PHP and how can we change this?
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What is the purpose of the following files having extensions: frm
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What is the use of friend function?
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What type of headers have to be added in the mail function to attach a file?
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What type of inheritance that php supports?
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WHAT TYPES OF IMAGES THAT PHP SUPPORTS?
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What's PHP
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What’s the difference between accessing a class method via -lt and via ::?
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What’s the difference between htmlentities() and htmlspecialchars()?
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What’s the difference between include and require?
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What’s the difference between md5()
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What’s the output of the ucwords function in this example?
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what’s the problem?
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What’s the special meaning of __sleep and __wakeup?
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what’s the value of $$b?
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When are you supposed to use endif to end the conditional statement?
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When viewing an HTML page in a Browser
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When you want to show some part of a text displayed on an HTML page in red font color? What different possibilities are there to do this? What are the advantages/disadvantages of these methods?
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which can be used to identify the URL from within a HTML link tag.
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WHO IS THE FATHER OF PHP AND WHAT IS THE CURRENT VERSION OF PHP AND MYSQL?
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Why doesn’t the following code print the newline properly? lt;?php $str = ‘Hello
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why would you ever use the less secure crc32() and sha1()?
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width
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Will comparison of string "10" and integer 11 work in PHP?
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With a heredoc syntax
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Would I use print "$a dollars" or "{$a} dollars" to print out the amount of dollars in this example?
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Would you initialize your strings with single quotes or double quotes?
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Write a query for the following question
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