Tag: PHP 7.4
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Post Views: 28 1. Reference:Based on Alibaba Cloud’s ECS and RDS, the personal blog migration has been upgraded to: Docker (based on budget considerations, ultimately not realized), LNMP (CentOS 7.7, Nginx 1.16, MySQL 5.7, PHP 7.4), the process of HTTPS , the previous environment was based on the automatic installation of OneInstack. PHP version 7.4 is no longer eligible for…
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Post Views: 22 1. Reference:Install PHP, its version defaults to PHP 7.4 2. Uninstall PHP 7.4 and its dependencies first 3. Reference:How to install and run PHP 8.x on Ubuntu 20.04. Add the PHP PPA repository. Install PHP 8.1 using the following command. 4. Install PHP 8.1 successfully. as shown in Figure 1
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Post Views: 16 1. Report an error in PHP 7.4: header() expects at least 1 parameter, 0 given. as shown in Figure 1 2. Check the specific code implementation 3. Print the $fields , the result is as follows 4. Add judgment, when $field is equal to name, print $FieldResolvers[$field], is_callable($fieldResolvers[$field]) 5. is_callable — Verify that the value can be…
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Post Views: 15 1. In the MySQL table, the field type is JSON, and it is allowed to be null. as shown in Figure 1 2. Since only is_null() is judged in the program, if it is not null, the default is json format. When its value is String(4) “NULL”, the program throws a 500 exception. Displayed as null, indicating…
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Post Views: 19 1. In PHP 7.4, when using file_put_contents, an error is reported: Failed to open stream: no such file or directory. as shown in Figure 1 2. The reason is the file name: theme-cdn-config-2023-02-23-10:23:19.txt format is incorrect, it contains :, replace : with -, run again, no errors are reported.
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Post Views: 20 1. In the container, when the environment variable is obtained for the first time, the configuration value of the production environment is obtained, or it is not obtained (set in the program, when the environment variable is not set, the default setting is the configuration value of the production environment). When the environment variable is obtained for…
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Post Views: 19 1. Error in PHP 7.4: Array to String Conversion. as shown in Figure 1 2. Check the second line of the error file, the code is as follows. as shown in Figure 2 3. Decide to debug online, and decide to print this variable according to the array format 4. When echo, its parameters are cast to…
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Post Views: 13 1. Error in PHP 7.4: Illegal offset type in issue or empty. as shown in Figure 1 2. The code is as follows: 3. Print $setting, its value is the object. as shown in Figure 2 4. will $setting[‘settingId’]Convert to string. 5. The value of the printed and converted string is as follows 6. No more errors.
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Post Views: 17 1. The value of the string: E:\wwwroot\object\storage\app/theme_dow nloads/2022/05/25/1653468314.0994.1295326141.zip 2. Values of other characters: E:\wwwroot\object\storage\app/ 3. The code is implemented as follows 4. Results: _downloads/2022/05/25/1653468314.0994.1295326141.zip. Expected is: Theme_Downloads/2022/05/25/1653468314.0994.1295326141.zip. as shown in Figure 1 5. The code implementation is adjusted as follows, remove the last / of the values of other characters 6. The results are in line with…
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Post Views: 20 1. Reference:https://www.php.net/manual/zh/ziparchive.extractto.php. ZipArchive::ExtractTo. Extract the compressed file to the specified directory. as shown in Figure 1 2. The final reference implementation is as follows 3. The decompressed directory structure is the same as the original file name and the same name. as shown in Figure 2