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- How to compile php7 installation directory
- The method to compile the php7 installation directory is: 1. Download the source code of PHP7 and extract it to a local directory; 2. Install the required dependency packages to ensure that PHP7 can run normally; 3. Enter the PHP7 source code directory and configure the compilation of PHP7 Parameters; 4. Execute the command to compile and install PHP7.
- PHP Problem 1833 2023-06-05 09:26:02
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- How to compile and install Apache and PHP
- The method to compile and install Apache and PHP is: 1. Download the required versions of Apache and PHP and decompress the source code files; 2. In the directory of the Apache and PHP source code, use the "./configure" command to configure Apache and run " make" and "make install" commands to compile and install Apache; 3. Open the Apache configuration file "httpd.conf" and add the configuration code; 4. Restart the Apache service.
- PHP Problem 1714 2023-06-02 16:15:30
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- How to convert timestamp to date format in php
- How to convert timestamp to date format in PHP: 1. Use the "date()" function, the syntax is "date("Y-m-d H:i:s", timestamp)"; 2. Use the DateTime class, the syntax is "new DateTime("@timestamp")"; 3. Use the "strftime()" function, the syntax is "strftime('%Y-%m-%d %H:%M:%S', timestamp)".
- PHP Problem 2001 2023-06-02 16:35:24
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- What is implicit conversion of types in php
- PHP's implicit type conversion means that when a variable is assigned a value different from its own data type, PHP will automatically convert it to another data type.
- PHP Problem 1488 2023-06-02 15:40:02
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- what is val in php
- Val in PHP is generally not a built-in function or keyword in the language, so it has no clear meaning. It may be a variable, function name or class name defined by the programmer himself.
- PHP Problem 2315 2023-06-02 15:06:14
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- What is the difference between echo statement and vardump function in php
- The difference between the echo statement and the vardump function in PHP is that echo is used to output one or more strings, while var_dump is used to output relevant information about the specified variable, such as type, value, length, etc.
- PHP Problem 1953 2023-06-02 14:46:08
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- What is define in php
- Define in PHP is a function used to define constants. Constants refer to values that cannot be changed or redefined. Unlike variables, once a constant is defined, it cannot be modified or revoked. Its function syntax is "define(name, value, case_insensitive) )", it should be noted that constant names usually follow certain specifications, such as using all uppercase letters, using underscores _ to separate words, etc.
- PHP Problem 2304 2023-06-02 15:30:45
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- What are the differences between php and c#
- The differences between php and c# are: 1. The language type system is different, PHP is dynamic, while C# is static type; 2. The platforms used are different, PHP can be cross-platform, while C# is exclusive to Windows; 3. The programming paradigm is different, PHP It supports object-oriented, procedural and functional programming, and C# is more inclined to object-oriented programming; 4. The execution speed is different, PHP is faster, and C# is relatively slow; 5. The application scenarios are different, PHP is used in web development, servers, etc. C# is used for Windows desktop and web applications.
- PHP Problem 2650 2023-06-02 14:03:42
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- What are the ways to prevent the fgets function from getting newline characters in PHP?
- How to prevent the fgets function from getting the newline character in PHP: 1. Use the "rtrim" function to remove the newline character at the end of the line when reading the text line. The code is "rtrim(text content, "\n")"; 2. Use the "str_replace" function to replace the newline character, the code is "str_replace("\n", "", text content)".
- PHP Problem 2204 2023-06-02 13:24:36
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- What are the five ways to connect php to sqlserver?
- The five ways to connect SQL Server with PHP are as follows: 1. Use the "mssql_connect()" function; 2. Use the "sqlsrv_connect()" function; 3. Use the PDO class connection; 4. Use the "odbc_connect()" function; 5. Use COM Object connection.
- PHP Problem 5685 2023-06-02 11:59:50
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- How to convert xml+ to php+ array
- Method to convert xml+ to php+ array: 1. Use the syntax "simplexml_load_string()" to convert the xml string into a SimpleXmlElement object; 2. Use the syntax "json_decode()" to convert the SimpleXmlElement object into a PHP array; 3. Use the syntax "foreach" ()" loop to access the item element; 4. Use the syntax "getDocNamespaces()" to process the xml string namespace.
- PHP Problem 1022 2023-06-02 11:54:19
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- How to round the value after division in php
- How to implement rounding of values after division in PHP: 1. Create a PHP sample file; 2. Create two variables, namely "$myval" and "$const"; 3. "round()" function to set the value after division Value, the syntax is "$result = round($myval / $const, 2, PHP_ROUND_HALF_UP);"; 4. This can be achieved by outputting the "$result" assignment result through echo.
- PHP Problem 1166 2023-06-02 13:57:25
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- What are the methods for merging two arrays in PHP?
- How to merge two arrays in PHP: 1. Create a PHP sample file, define two variables as "$a" and "$b", and use the "+" operator to realize the values of the two arrays through the "$a+$b" formula Merge into one array; 2. Use the "array_merge($a,$b)" syntax to merge the two arrays; 3. Use the "array_merge_recursive($a,$b)" syntax to merge the arrays; 4. Use the "array_combine($ a,$b)" syntax to merge two arrays.
- PHP Problem 4158 2023-06-02 17:03:15
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- How to convert json string to csv format in php
- How to convert json string to csv format in php: 1. Create a php sample file; 2. Convert the JSON string to a PHP array or object; 3. Create a file handle and open a CSV file for writing; 4. Write the header row and data row in the CSV file; 5. Write the data row into the CSV file and use comma separators between fields, close the file handle and complete the conversion.
- PHP Problem 2114 2023-06-02 11:37:07
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- What is the difference between php and thinphp?
- The difference between php and thinphp is: 1. PHP is a programming language, while ThinkPHP is a fast, efficient and free web application development framework based on PHP language; 2. PHP has wide compatibility and higher flexibility It runs on almost all operating systems, while ThinkPHP is only suitable for PHP environments; 3. PHP has a relatively steep learning curve, providing more control and creativity. ThinkPHP tends to pursue high efficiency and usually uses standardized ideas.
- PHP Problem 2897 2023-06-02 10:51:17
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