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Running a PHP Script
How To Run a PHP Script? A standard alone PHP script can be executed directly with the PHP Command Line Interface (CLI). Write the following script in a file called hello.php: &lt;?php echo "Hello world!"; ?&gt; This script can be executed by CLI interface like this: \php\php hello.php You s... 2016-10-13, ∼3009🔥, 0💬

Malicious Website Stealing Cookies in PHP
How Can Other Webmaster Steal Your Cookies in PHP? All browsers are following the security rule that your cookies are sent back only to your Web servers. They will not be sent to other Webmaster's Web server directly. However, other Webmaster may design some malicious JavaScript codes to steal cooki... 2016-10-29, ∼3002🔥, 0💬

Sorting an Array by Values in PHP
How To Sort an Array by Values in PHP? Sorting an array by values is doable by using the sort() function. It will re-order all pairs of keys and values based on the alphanumeric order of the values. Then it will replace all keys with integer keys sequentially starting with 0. So using sort() on arra... 2017-01-21, ∼3001🔥, 0💬

Generating and Processing Form with the Same Script in PHP
How To Generate and Process a Form with the Same Script in PHP? In previous exercises, a Web form is generated by one script, and processed by another script. But you could write a single script to do both. You just need to remember to: Use same script name as the form generation script in the "acti... 2016-11-08, ∼2973🔥, 0💬

Retrieving All Values from an Array in PHP
How To Get All the Values Out of an Array in PHP? Function array_values() returns a new array that contains all the values of a given array. Here is a PHP script on how to use array_values(): &lt;?php $mixed = array(); $mixed["Zero"] = "PHP"; $mixed[1] = "Perl"; $mixed["Two"] = "Java"; $mixed["3... 2017-01-21, ∼2961🔥, 0💬

Replacing a Substring in PHP
How To Replace a Substring in a Given String? If you know the position of a substring in a given string, you can replace that substring by another string by using the substr_replace() function. Here is a PHP script on how to use substr_replace(): &lt;?php $string = "Warning: System will shutdown... 2016-10-13, ∼2956🔥, 0💬

Including Array Elements in Double-Quoted Strings in PHP
How Many Ways to Include Array Elements in Double-Quoted Strings? There are 2 formats to include array elements in double-quoted strings: "part 1 $array[key] part 2" - This is called simple format. In this format, you can not specify the element key in quotes. "part 1 {$array['key']} part 2" - This ... 2016-10-13, ∼2954🔥, 0💬

Passing Arrays by Values to Functions in PHP
How Arrays Are Passed Through Arguments? in PHP? Like a normal variable, an array is passed through an argument by value, not by reference. That means when an array is passed as an argument, a copy of the array will be passed into the function. Modifying that copy inside the function will not impact... 2016-12-18, ∼2950🔥, 0💬

Writing a String to a File with a File Handle in PHP
How To Write a String to a File with a File Handle in PHP? If you have a file handle linked to a file opened for writing, and you want to write a string to the file, you can use the fwrite() function. It will write the string to the file where the file pointer is located, and moves the file pointer ... 2016-11-27, ∼2939🔥, 0💬

Writing a String to a File without a File Handle in PHP
How To Write a String to a File without a File Handle in PHP? If you have a string, want to write it to a file, and you don't want to open the file with a file handle, you can use the file_put_contents(). It opens the specified file, writes the specified string, closes the file, and returns the numb... 2016-11-27, ∼2936🔥, 0💬

Mistake on Setting Cookie Path and Domain in PHP
What Is the Common Mistake When Setting Path and Domain on Temporary Cookies in PHP? A common mistake made by many PHP developers is using an empty string for the expiration time parameter when setting path and domain for temporary cookies. The PHP script below shows an example of this mistake: &... 2016-11-03, ∼2936🔥, 0💬

Viewing Cookie Header Lines in PHP
How To View Cookie Header Lines in PHP? If you are interested to see the cookie header lines, or you are having trouble with your cookies and need to see the cookies to help debugging, you can run your script with PHP CGI interface in a command line window. The following tutorial exercise shows you ... 2016-11-02, ∼2930🔥, 0💬

Passing Arrays to Function in PHP
Can You Pass an Array into a Function? in PHP? You can pass an array into a function in the same as a normal variable. No special syntax needed. Here is a PHP script on how to pass an array to a function: &lt;?php function average($array) { $sum = array_sum($array); $count = count($array); retur... 2023-04-06, ∼2927🔥, 1💬

💬 2023-04-06 Durga: Good

Merging Two Arrays into a Single Array in PHP
How To Merge Values of Two Arrays into a Single Array in PHP? You can use the array_merge() function to merge two arrays into a single array. array_merge() appends all pairs of keys and values of the second array to the end of the first array. Here is a PHP script on how to use array_merge(): &l... 2017-01-11, ∼2925🔥, 0💬

Cookie Management on Firefox in PHP
How Does Firefox Manage Cookies in PHP? Firefox browser allows you to delete old cookies, and gives you options to keep persistent cookies in cookie files until they reach their expiration time. The following tutorial shows you how to manage cookies in Firefox: Run Firefox Go to Tools/Options Click ... 2016-10-30, ∼2924🔥, 0💬

Splitting a String into an Array in PHP
How To Split a String into an Array of Substring in PHP? There are two functions you can use to split a string into an Array of Substring: explode(substring, string) - Splitting a string based on a substring. Faster than split(). split(pattern, string) - Splitting a string based on a regular express... 2016-12-28, ∼2914🔥, 0💬

Finding a Substring in PHP
How to Find a Substring from a Given String? To find a substring in a given string, you can use the strpos() function. If you call strpos($haystack, $needle), it will try to find the position of the first occurrence of the $needle string in the $haystack string. If found, it will return a non-negati... 2016-10-13, ∼2913🔥, 0💬

Specifying Argument Default Values in PHP
How To Specify Argument Default Values? in PHP? If you want to allow the caller to skip an argument when calling a function, you can define the argument with a default value when defining the function. Adding a default value to an argument can be done like this "function name($arg=expression){}. Her... 2016-12-04, ∼2912🔥, 0💬

Counting the Number of Values in an Array in PHP
How To Get the Total Number of Values in an Array in PHP? You can get the total number of values in an array by using the count() function. Here is a PHP example script: &lt;?php $array = array("PHP", "Perl", "Java"); print_r("Size 1: ".count($array)."\n"); $array = array(); print_r("Size 2: ".c... 2017-01-29, ∼2900🔥, 0💬

PHP Built-in Functions for Strings
Where to find tutorials and answers to frequently asked questions for PHP Built-in Functions for Strings? A collection of frequently asked questions on manipulating strings in PHP. Clear answers are provided with tutorial exercises on string functions including strlen, trim, substr, chop, strpos, st... 2016-10-13, ∼2899🔥, 0💬

Converting Numbers to Strings in PHP
How To Convert Numbers to Strings? In a string context, PHP will automatically convert any numeric value to a string. Here is a PHP script examples: &lt;?php print(-1.3e3); print("\n"); print(strlen(-1.3e3)); print("\n"); print("Price = $" . 99.99 . "\n"); print(1 . " + " . 2 . " = " . 1+2 . "\n... 2016-10-13, ∼2896🔥, 0💬

Returning a Reference from a Function in PHP
How To Return a Reference from a Function? in PHP? To return a reference from a function, you need to: Add the reference operator "&amp;" when defining the function. Add the reference operator "&amp;" when invoking the function. Here is a PHP script on how to return a reference from a functi... 2016-12-08, ∼2893🔥, 0💬

Retrieving Submitted Form Data in PHP
How To Retrieve the Submitted Form Data in PHP? The best way to retrieve the form data submitted by your visitor is to use the $_REQUEST array. The keys in this array will be the field names defined in form. The values in this array will be the values entered by your visitor in the input fields. The... 2016-11-15, ∼2875🔥, 0💬

Creating a Web Form in PHP
How To Create a Web Form in PHP? If you take input data from visitors on your Web site, you can create a Web form with input fields to allow visitors to fill in data and submit the data to your server for processing. A Web form can be created with the &lt;FORM&gt; tag with some input tags. T... 2016-11-17, ∼2865🔥, 0💬

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Blockchain Container EPUB General HTML JSON Microsoft Node.js PHP Python RSS Tools Visual Studio Web