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Differences between echo (), print (), and print_r () in PHP. The difference between echo and print is that echo can output multiple variable values, while print only has one variable, which is output as a string. another difference is that echo

Echo (), print (), and print_r () in PHP. The difference in print is that echo can output multiple variables & #20540; while print only has one variable, output as a string. another difference is that echo does not return & #20540;, and print has

Echo (), print (), and print_r () in PHP. The difference in print is that echo can output multiple variables & #20540; while print only has one variable, output as a string. another difference is that echo does not return & #20540;, and print

PHP dynamic link library in a call to C + + production of the tutorial, PHP DLL Generally speaking, PHP speed is faster, but for some of the more advanced developers, if you want to pursue faster speed, there is no doubt that you can write the C

Common PHP variable output: echo, prinf, sprintf, var_dump, 1. use the echo statement Echo can be used to print variables and content. other variables can be system variables, HTML code, or PHP expressions, as shown in the following example:$ A = "1

The difference between echo and print is that echo can output multiple variable values, while print only has one variable, which is output as a string. another difference is that echo has no return value, and print has a return value. print cannot

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& Nbsp; echo, the difference between print is that echo can output multiple variable values, while print only has one variable, which is output as a string. another difference is that echo has no return value, and print has a return value. print

The difference between Echo and print is that echo can output multiple variable values, while print has only one variable as a string output. The other difference is that ECHO has no return value, and print has a return value of 1.print and cannot

In general, php is faster, but for some advanced developers, if they want to pursue a faster speed, they can write c code by themselves, and compiled as a dynamic link library (usually. so file), and then php creates a new extension and calls the