Tag: function
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Post Views: 16 1. In the past few days, an interview question during the computer test, design a high-precision addition function, which supports the addition of long numbers without losing the accuracy, and ignores negative numbers (please do not use BCADD and other built-in functions). 2. Check php official website, bcadd – the addition calculation of two arbitrary precision numbers.…
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Post Views: 17 1. Error: call to undefined function international\image\gd\imagecreateFromJPEG(). as shown in Figure 1 2. Check phpinfo and find that the gd library does not support jpeg format. as shown in Figure 2 3. By upgrading the basic image of the container, check phpinfo, and add the value of jpeg support to Enabled. The GD library already supports the…
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Post Views: 16 1. Based on the function: file_put_contents, when a string is written to the file, there are various forms in the group when defining the file name to be written to 2. Under different forms, the problem is that with the change of the running environment of the program, the file name of the written data is also…